21909840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{91291}}^1$

素因数の和:91307

約数の個数: 40

約数和(自身を含む): 67921248

約数和(自身を除く): 46011408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 91291, 182582, 273873, 365164, 456455, 547746, 730328, 912910, 1095492, 1369365, 1460656, 1825820, 2190984, 2738730, 3651640, 4381968, 5477460, 7303280, 10954920, 21909840]

約数ペア:

[(1, 21909840), (2, 10954920), (3, 7303280), (4, 5477460), (5, 4381968), (6, 3651640), (8, 2738730), (10, 2190984), (12, 1825820), (15, 1460656), (16, 1369365), (20, 1095492), (24, 912910), (30, 730328), (40, 547746), (48, 456455), (60, 365164), (80, 273873), (120, 182582), (240, 91291)]