21503790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 192

約数和(自身を含む): 72783360

約数和(自身を除く): 51279570

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 29, 30, 33, 35, 42, 45, 55, 58, 63, 66, 70, 77, 87, 90, 99, 105, 107, 110, 126, 145, 154, 165, 174, 198, 203, 210, 214, 231, 261, 290, 315, 319, 321, 330, 385, 406, 435, 462, 495, 522, 535, 609, 630, 638, 642, 693, 749, 770, 870, 957, 963, 990, 1015, 1070, 1155, 1177, 1218, 1305, 1386, 1498, 1595, 1605, 1827, 1914, 1926, 2030, 2233, 2247, 2310, 2354, 2610, 2871, 3045, 3103, 3190, 3210, 3465, 3531, 3654, 3745, 4466, 4494, 4785, 4815, 5742, 5885, 6090, 6206, 6699, 6741, 6930, 7062, 7490, 8239, 9135, 9309, 9570, 9630, 10593, 11165, 11235, 11770, 13398, 13482, 14355, 15515, 16478, 17655, 18270, 18618, 20097, 21186, 21721, 22330, 22470, 24717, 27927, 28710, 31030, 33495, 33705, 34133, 35310, 40194, 41195, 43442, 46545, 49434, 52965, 55854, 65163, 66990, 67410, 68266, 74151, 82390, 93090, 100485, 102399, 105930, 108605, 123585, 130326, 139635, 148302, 170665, 195489, 200970, 204798, 217210, 238931, 247170, 279270, 307197, 325815, 341330, 370755, 390978, 477862, 511995, 614394, 651630, 716793, 741510, 977445, 1023990, 1194655, 1433586, 1535985, 1954890, 2150379, 2389310, 3071970, 3583965, 4300758, 7167930, 10751895, 21503790]

約数ペア:

[(1, 21503790), (2, 10751895), (3, 7167930), (5, 4300758), (6, 3583965), (7, 3071970), (9, 2389310), (10, 2150379), (11, 1954890), (14, 1535985), (15, 1433586), (18, 1194655), (21, 1023990), (22, 977445), (29, 741510), (30, 716793), (33, 651630), (35, 614394), (42, 511995), (45, 477862), (55, 390978), (58, 370755), (63, 341330), (66, 325815), (70, 307197), (77, 279270), (87, 247170), (90, 238931), (99, 217210), (105, 204798), (107, 200970), (110, 195489), (126, 170665), (145, 148302), (154, 139635), (165, 130326), (174, 123585), (198, 108605), (203, 105930), (210, 102399), (214, 100485), (231, 93090), (261, 82390), (290, 74151), (315, 68266), (319, 67410), (321, 66990), (330, 65163), (385, 55854), (406, 52965), (435, 49434), (462, 46545), (495, 43442), (522, 41195), (535, 40194), (609, 35310), (630, 34133), (638, 33705), (642, 33495), (693, 31030), (749, 28710), (770, 27927), (870, 24717), (957, 22470), (963, 22330), (990, 21721), (1015, 21186), (1070, 20097), (1155, 18618), (1177, 18270), (1218, 17655), (1305, 16478), (1386, 15515), (1498, 14355), (1595, 13482), (1605, 13398), (1827, 11770), (1914, 11235), (1926, 11165), (2030, 10593), (2233, 9630), (2247, 9570), (2310, 9309), (2354, 9135), (2610, 8239), (2871, 7490), (3045, 7062), (3103, 6930), (3190, 6741), (3210, 6699), (3465, 6206), (3531, 6090), (3654, 5885), (3745, 5742), (4466, 4815), (4494, 4785)]