21493300

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^2\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 54

約数和(自身を含む): 48240402

約数和(自身を除く): 26747102

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 148, 157, 185, 314, 370, 628, 740, 785, 925, 1369, 1570, 1850, 2738, 3140, 3700, 3925, 5476, 5809, 6845, 7850, 11618, 13690, 15700, 23236, 27380, 29045, 34225, 58090, 68450, 116180, 136900, 145225, 214933, 290450, 429866, 580900, 859732, 1074665, 2149330, 4298660, 5373325, 10746650, 21493300]

約数ペア:

[(1, 21493300), (2, 10746650), (4, 5373325), (5, 4298660), (10, 2149330), (20, 1074665), (25, 859732), (37, 580900), (50, 429866), (74, 290450), (100, 214933), (148, 145225), (157, 136900), (185, 116180), (314, 68450), (370, 58090), (628, 34225), (740, 29045), (785, 27380), (925, 23236), (1369, 15700), (1570, 13690), (1850, 11618), (2738, 7850), (3140, 6845), (3700, 5809), (3925, 5476)]