21410050

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:283

約数の個数: 48

約数和(自身を含む): 41729472

約数和(自身を除く): 20319422

約数列:

[1, 2, 5, 10, 25, 37, 50, 71, 74, 142, 163, 185, 326, 355, 370, 710, 815, 925, 1630, 1775, 1850, 2627, 3550, 4075, 5254, 6031, 8150, 11573, 12062, 13135, 23146, 26270, 30155, 57865, 60310, 65675, 115730, 131350, 150775, 289325, 301550, 428201, 578650, 856402, 2141005, 4282010, 10705025, 21410050]

約数ペア:

[(1, 21410050), (2, 10705025), (5, 4282010), (10, 2141005), (25, 856402), (37, 578650), (50, 428201), (71, 301550), (74, 289325), (142, 150775), (163, 131350), (185, 115730), (326, 65675), (355, 60310), (370, 57865), (710, 30155), (815, 26270), (925, 23146), (1630, 13135), (1775, 12062), (1850, 11573), (2627, 8150), (3550, 6031), (4075, 5254)]