21858736

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80363}}^1$

素因数の和:80388

約数の個数: 20

約数和(自身を含む): 44843112

約数和(自身を除く): 22984376

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80363, 160726, 321452, 642904, 1285808, 1366171, 2732342, 5464684, 10929368, 21858736]

約数ペア:

[(1, 21858736), (2, 10929368), (4, 5464684), (8, 2732342), (16, 1366171), (17, 1285808), (34, 642904), (68, 321452), (136, 160726), (272, 80363)]