21671351

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 23990400

約数和(自身を除く): 2319049

約数列:

[1, 13, 67, 139, 179, 871, 1807, 2327, 9313, 11993, 24881, 121069, 155909, 323453, 1667027, 21671351]

約数ペア:

[(1, 21671351), (13, 1667027), (67, 323453), (139, 155909), (179, 121069), (871, 24881), (1807, 11993), (2327, 9313)]