21000388644

素因数分解:

$2^2\times 3^3\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:619

約数の個数: 192

約数和(自身を含む): 56721772800

約数和(自身を除く): 35721384156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 53, 54, 97, 106, 108, 109, 159, 194, 212, 218, 291, 318, 327, 347, 388, 436, 477, 582, 636, 654, 694, 873, 954, 981, 1041, 1164, 1308, 1388, 1431, 1746, 1908, 1962, 2082, 2619, 2862, 2943, 3123, 3492, 3924, 4164, 5141, 5238, 5724, 5777, 5886, 6246, 9369, 10282, 10476, 10573, 11554, 11772, 12492, 15423, 17331, 18391, 18738, 20564, 21146, 23108, 30846, 31719, 33659, 34662, 36782, 37476, 37823, 42292, 46269, 51993, 55173, 61692, 63438, 67318, 69324, 73564, 75646, 92538, 95157, 100977, 103986, 110346, 113469, 126876, 134636, 138807, 151292, 155979, 165519, 185076, 190314, 201954, 207972, 220692, 226938, 277614, 285471, 302931, 311958, 331038, 340407, 380628, 403908, 453876, 496557, 555228, 560369, 570942, 605862, 623916, 662076, 680814, 908793, 993114, 1021221, 1120738, 1141884, 1211724, 1361628, 1681107, 1783927, 1817586, 1986228, 2004619, 2042442, 2241476, 3362214, 3567854, 3635172, 3668831, 4009238, 4084884, 5043321, 5351781, 6013857, 6724428, 7135708, 7337662, 8018476, 10086642, 10703562, 11006493, 12027714, 14675324, 15129963, 16055343, 18041571, 20173284, 21407124, 22012986, 24055428, 30259926, 32110686, 33019479, 36083142, 44025972, 48166029, 54124713, 60519852, 64221372, 66038958, 72166284, 96332058, 99058437, 108249426, 132077916, 192664116, 194448043, 198116874, 216498852, 388896086, 396233748, 583344129, 777792172, 1166688258, 1750032387, 2333376516, 3500064774, 5250097161, 7000129548, 10500194322, 21000388644]

約数ペア:

[(1, 21000388644), (2, 10500194322), (3, 7000129548), (4, 5250097161), (6, 3500064774), (9, 2333376516), (12, 1750032387), (18, 1166688258), (27, 777792172), (36, 583344129), (53, 396233748), (54, 388896086), (97, 216498852), (106, 198116874), (108, 194448043), (109, 192664116), (159, 132077916), (194, 108249426), (212, 99058437), (218, 96332058), (291, 72166284), (318, 66038958), (327, 64221372), (347, 60519852), (388, 54124713), (436, 48166029), (477, 44025972), (582, 36083142), (636, 33019479), (654, 32110686), (694, 30259926), (873, 24055428), (954, 22012986), (981, 21407124), (1041, 20173284), (1164, 18041571), (1308, 16055343), (1388, 15129963), (1431, 14675324), (1746, 12027714), (1908, 11006493), (1962, 10703562), (2082, 10086642), (2619, 8018476), (2862, 7337662), (2943, 7135708), (3123, 6724428), (3492, 6013857), (3924, 5351781), (4164, 5043321), (5141, 4084884), (5238, 4009238), (5724, 3668831), (5777, 3635172), (5886, 3567854), (6246, 3362214), (9369, 2241476), (10282, 2042442), (10476, 2004619), (10573, 1986228), (11554, 1817586), (11772, 1783927), (12492, 1681107), (15423, 1361628), (17331, 1211724), (18391, 1141884), (18738, 1120738), (20564, 1021221), (21146, 993114), (23108, 908793), (30846, 680814), (31719, 662076), (33659, 623916), (34662, 605862), (36782, 570942), (37476, 560369), (37823, 555228), (42292, 496557), (46269, 453876), (51993, 403908), (55173, 380628), (61692, 340407), (63438, 331038), (67318, 311958), (69324, 302931), (73564, 285471), (75646, 277614), (92538, 226938), (95157, 220692), (100977, 207972), (103986, 201954), (110346, 190314), (113469, 185076), (126876, 165519), (134636, 155979), (138807, 151292)]