20821608

素因数分解:

$2^3\times 3^2\times {\mathrm{289189}}^1$

素因数の和:289201

約数の個数: 24

約数和(自身を含む): 56392050

約数和(自身を除く): 35570442

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 289189, 578378, 867567, 1156756, 1735134, 2313512, 2602701, 3470268, 5205402, 6940536, 10410804, 20821608]

約数ペア:

[(1, 20821608), (2, 10410804), (3, 6940536), (4, 5205402), (6, 3470268), (8, 2602701), (9, 2313512), (12, 1735134), (18, 1156756), (24, 867567), (36, 578378), (72, 289189)]