21615472

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22147}}^1$

素因数の和:22216

約数の個数: 20

約数和(自身を含む): 42568456

約数和(自身を除く): 20952984

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22147, 44294, 88588, 177176, 354352, 1350967, 2701934, 5403868, 10807736, 21615472]

約数ペア:

[(1, 21615472), (2, 10807736), (4, 5403868), (8, 2701934), (16, 1350967), (61, 354352), (122, 177176), (244, 88588), (488, 44294), (976, 22147)]