21366760

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14437}}^1$

素因数の和:14485

約数の個数: 32

約数和(自身を含む): 49377960

約数和(自身を除く): 28011200

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14437, 28874, 57748, 72185, 115496, 144370, 288740, 534169, 577480, 1068338, 2136676, 2670845, 4273352, 5341690, 10683380, 21366760]

約数ペア:

[(1, 21366760), (2, 10683380), (4, 5341690), (5, 4273352), (8, 2670845), (10, 2136676), (20, 1068338), (37, 577480), (40, 534169), (74, 288740), (148, 144370), (185, 115496), (296, 72185), (370, 57748), (740, 28874), (1480, 14437)]