21638760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 77474880

約数和(自身を除く): 55836120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 97, 104, 110, 120, 130, 132, 143, 156, 165, 169, 194, 195, 220, 260, 264, 286, 291, 312, 330, 338, 388, 390, 429, 440, 485, 507, 520, 572, 582, 660, 676, 715, 776, 780, 845, 858, 970, 1014, 1067, 1144, 1164, 1261, 1320, 1352, 1430, 1455, 1560, 1690, 1716, 1859, 1940, 2028, 2134, 2145, 2328, 2522, 2535, 2860, 2910, 3201, 3380, 3432, 3718, 3783, 3880, 4056, 4268, 4290, 5044, 5070, 5335, 5577, 5720, 5820, 6305, 6402, 6760, 7436, 7566, 8536, 8580, 9295, 10088, 10140, 10670, 11154, 11640, 12610, 12804, 13871, 14872, 15132, 16005, 16393, 17160, 18590, 18915, 20280, 21340, 22308, 25220, 25608, 27742, 27885, 30264, 32010, 32786, 37180, 37830, 41613, 42680, 44616, 49179, 50440, 55484, 55770, 64020, 65572, 69355, 74360, 75660, 81965, 83226, 98358, 110968, 111540, 128040, 131144, 138710, 151320, 163930, 166452, 180323, 196716, 208065, 223080, 245895, 277420, 327860, 332904, 360646, 393432, 416130, 491790, 540969, 554840, 655720, 721292, 832260, 901615, 983580, 1081938, 1442584, 1664520, 1803230, 1967160, 2163876, 2704845, 3606460, 4327752, 5409690, 7212920, 10819380, 21638760]

約数ペア:

[(1, 21638760), (2, 10819380), (3, 7212920), (4, 5409690), (5, 4327752), (6, 3606460), (8, 2704845), (10, 2163876), (11, 1967160), (12, 1803230), (13, 1664520), (15, 1442584), (20, 1081938), (22, 983580), (24, 901615), (26, 832260), (30, 721292), (33, 655720), (39, 554840), (40, 540969), (44, 491790), (52, 416130), (55, 393432), (60, 360646), (65, 332904), (66, 327860), (78, 277420), (88, 245895), (97, 223080), (104, 208065), (110, 196716), (120, 180323), (130, 166452), (132, 163930), (143, 151320), (156, 138710), (165, 131144), (169, 128040), (194, 111540), (195, 110968), (220, 98358), (260, 83226), (264, 81965), (286, 75660), (291, 74360), (312, 69355), (330, 65572), (338, 64020), (388, 55770), (390, 55484), (429, 50440), (440, 49179), (485, 44616), (507, 42680), (520, 41613), (572, 37830), (582, 37180), (660, 32786), (676, 32010), (715, 30264), (776, 27885), (780, 27742), (845, 25608), (858, 25220), (970, 22308), (1014, 21340), (1067, 20280), (1144, 18915), (1164, 18590), (1261, 17160), (1320, 16393), (1352, 16005), (1430, 15132), (1455, 14872), (1560, 13871), (1690, 12804), (1716, 12610), (1859, 11640), (1940, 11154), (2028, 10670), (2134, 10140), (2145, 10088), (2328, 9295), (2522, 8580), (2535, 8536), (2860, 7566), (2910, 7436), (3201, 6760), (3380, 6402), (3432, 6305), (3718, 5820), (3783, 5720), (3880, 5577), (4056, 5335), (4268, 5070), (4290, 5044)]