21881800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2957}}^1$

素因数の和:3010

約数の個数: 48

約数和(自身を含む): 52267860

約数和(自身を除く): 30386060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2957, 3700, 5914, 7400, 11828, 14785, 23656, 29570, 59140, 73925, 109409, 118280, 147850, 218818, 295700, 437636, 547045, 591400, 875272, 1094090, 2188180, 2735225, 4376360, 5470450, 10940900, 21881800]

約数ペア:

[(1, 21881800), (2, 10940900), (4, 5470450), (5, 4376360), (8, 2735225), (10, 2188180), (20, 1094090), (25, 875272), (37, 591400), (40, 547045), (50, 437636), (74, 295700), (100, 218818), (148, 147850), (185, 118280), (200, 109409), (296, 73925), (370, 59140), (740, 29570), (925, 23656), (1480, 14785), (1850, 11828), (2957, 7400), (3700, 5914)]