21731620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35051}}^1$

素因数の和:35091

約数の個数: 24

約数和(自身を含む): 47109888

約数和(自身を除く): 25378268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35051, 70102, 140204, 175255, 350510, 701020, 1086581, 2173162, 4346324, 5432905, 10865810, 21731620]

約数ペア:

[(1, 21731620), (2, 10865810), (4, 5432905), (5, 4346324), (10, 2173162), (20, 1086581), (31, 701020), (62, 350510), (124, 175255), (155, 140204), (310, 70102), (620, 35051)]