390008174

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{20903}}^1$

素因数の和:21415

約数の個数: 16

約数和(自身を含む): 617086080

約数和(自身を除く): 227077906

約数列:

[1, 2, 19, 38, 491, 982, 9329, 18658, 20903, 41806, 397157, 794314, 10263373, 20526746, 195004087, 390008174]

約数ペア:

[(1, 390008174), (2, 195004087), (19, 20526746), (38, 10263373), (491, 794314), (982, 397157), (9329, 41806), (18658, 20903)]