21705866

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6277}}^1$

素因数の和:6318

約数の個数: 32

約数和(自身を含む): 42188160

約数和(自身を除く): 20482294

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 6277, 12554, 43939, 81601, 87878, 119263, 163202, 238526, 571207, 834841, 1142414, 1550419, 1669682, 3100838, 10852933, 21705866]

約数ペア:

[(1, 21705866), (2, 10852933), (7, 3100838), (13, 1669682), (14, 1550419), (19, 1142414), (26, 834841), (38, 571207), (91, 238526), (133, 163202), (182, 119263), (247, 87878), (266, 81601), (494, 43939), (1729, 12554), (3458, 6277)]