18903964

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{521}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 34026048

約数和(自身を除く): 15122084

約数列:

[1, 2, 4, 47, 94, 188, 193, 386, 521, 772, 1042, 2084, 9071, 18142, 24487, 36284, 48974, 97948, 100553, 201106, 402212, 4725991, 9451982, 18903964]

約数ペア:

[(1, 18903964), (2, 9451982), (4, 4725991), (47, 402212), (94, 201106), (188, 100553), (193, 97948), (386, 48974), (521, 36284), (772, 24487), (1042, 18142), (2084, 9071)]