21651474

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1997}}^1$

素因数の和:2154

約数の個数: 32

約数和(自身を含む): 46992960

約数和(自身を除く): 25341486

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 139, 278, 417, 834, 1807, 1997, 3614, 3994, 5421, 5991, 10842, 11982, 25961, 51922, 77883, 155766, 277583, 555166, 832749, 1665498, 3608579, 7217158, 10825737, 21651474]

約数ペア:

[(1, 21651474), (2, 10825737), (3, 7217158), (6, 3608579), (13, 1665498), (26, 832749), (39, 555166), (78, 277583), (139, 155766), (278, 77883), (417, 51922), (834, 25961), (1807, 11982), (1997, 10842), (3614, 5991), (3994, 5421)]