16647644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{823}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 31493280

約数和(自身を除く): 14845636

約数列:

[1, 2, 4, 13, 26, 52, 389, 778, 823, 1556, 1646, 3292, 5057, 10114, 10699, 20228, 21398, 42796, 320147, 640294, 1280588, 4161911, 8323822, 16647644]

約数ペア:

[(1, 16647644), (2, 8323822), (4, 4161911), (13, 1280588), (26, 640294), (52, 320147), (389, 42796), (778, 21398), (823, 20228), (1556, 10699), (1646, 10114), (3292, 5057)]