21757218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 52641792

約数和(自身を除く): 30884574

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 101, 138, 161, 202, 223, 303, 322, 446, 483, 606, 669, 707, 966, 1338, 1414, 1561, 2121, 2323, 3122, 4242, 4646, 4683, 5129, 6969, 9366, 10258, 13938, 15387, 16261, 22523, 30774, 32522, 35903, 45046, 48783, 67569, 71806, 97566, 107709, 135138, 157661, 215418, 315322, 472983, 518029, 945966, 1036058, 1554087, 3108174, 3626203, 7252406, 10878609, 21757218]

約数ペア:

[(1, 21757218), (2, 10878609), (3, 7252406), (6, 3626203), (7, 3108174), (14, 1554087), (21, 1036058), (23, 945966), (42, 518029), (46, 472983), (69, 315322), (101, 215418), (138, 157661), (161, 135138), (202, 107709), (223, 97566), (303, 71806), (322, 67569), (446, 48783), (483, 45046), (606, 35903), (669, 32522), (707, 30774), (966, 22523), (1338, 16261), (1414, 15387), (1561, 13938), (2121, 10258), (2323, 9366), (3122, 6969), (4242, 5129), (4646, 4683)]