27986497

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 35868960

約数和(自身を除く): 7882463

約数列:

[1, 7, 11, 49, 77, 137, 379, 539, 959, 1507, 2653, 4169, 6713, 10549, 18571, 29183, 51923, 73843, 204281, 363461, 571153, 2544227, 3998071, 27986497]

約数ペア:

[(1, 27986497), (7, 3998071), (11, 2544227), (49, 571153), (77, 363461), (137, 204281), (379, 73843), (539, 51923), (959, 29183), (1507, 18571), (2653, 10549), (4169, 6713)]