21663500

素因数分解:

$2^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{1171}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 48633312

約数和(自身を除く): 26969812

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 250, 370, 500, 740, 925, 1171, 1850, 2342, 3700, 4625, 4684, 5855, 9250, 11710, 18500, 23420, 29275, 43327, 58550, 86654, 117100, 146375, 173308, 216635, 292750, 433270, 585500, 866540, 1083175, 2166350, 4332700, 5415875, 10831750, 21663500]

約数ペア:

[(1, 21663500), (2, 10831750), (4, 5415875), (5, 4332700), (10, 2166350), (20, 1083175), (25, 866540), (37, 585500), (50, 433270), (74, 292750), (100, 216635), (125, 173308), (148, 146375), (185, 117100), (250, 86654), (370, 58550), (500, 43327), (740, 29275), (925, 23420), (1171, 18500), (1850, 11710), (2342, 9250), (3700, 5855), (4625, 4684)]