40638689

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 51403968

約数和(自身を除く): 10765279

約数列:

[1, 7, 13, 49, 91, 131, 487, 637, 917, 1703, 3409, 6331, 6419, 11921, 23863, 44317, 63797, 83447, 310219, 446579, 829361, 3126053, 5805527, 40638689]

約数ペア:

[(1, 40638689), (7, 5805527), (13, 3126053), (49, 829361), (91, 446579), (131, 310219), (487, 83447), (637, 63797), (917, 44317), (1703, 23863), (3409, 11921), (6331, 6419)]