21009079920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87537833}}^1$

素因数の和:87537849

約数の個数: 40

約数和(自身を含む): 65128148496

約数和(自身を除く): 44119068576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87537833, 175075666, 262613499, 350151332, 437689165, 525226998, 700302664, 875378330, 1050453996, 1313067495, 1400605328, 1750756660, 2100907992, 2626134990, 3501513320, 4201815984, 5252269980, 7003026640, 10504539960, 21009079920]

約数ペア:

[(1, 21009079920), (2, 10504539960), (3, 7003026640), (4, 5252269980), (5, 4201815984), (6, 3501513320), (8, 2626134990), (10, 2100907992), (12, 1750756660), (15, 1400605328), (16, 1313067495), (20, 1050453996), (24, 875378330), (30, 700302664), (40, 525226998), (48, 437689165), (60, 350151332), (80, 262613499), (120, 175075666), (240, 87537833)]