21714620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1291}}^1$

素因数の和:1358

約数の個数: 36

約数和(自身を含む): 47263944

約数和(自身を除く): 25549324

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1291, 1682, 2582, 3364, 4205, 5164, 6455, 8410, 12910, 16820, 25820, 37439, 74878, 149756, 187195, 374390, 748780, 1085731, 2171462, 4342924, 5428655, 10857310, 21714620]

約数ペア:

[(1, 21714620), (2, 10857310), (4, 5428655), (5, 4342924), (10, 2171462), (20, 1085731), (29, 748780), (58, 374390), (116, 187195), (145, 149756), (290, 74878), (580, 37439), (841, 25820), (1291, 16820), (1682, 12910), (2582, 8410), (3364, 6455), (4205, 5164)]