21070528

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{4637}}^1$

素因数の和:4720

約数の個数: 28

約数和(自身を含む): 42409872

約数和(自身を除く): 21339344

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 568, 1136, 2272, 4544, 4637, 9274, 18548, 37096, 74192, 148384, 296768, 329227, 658454, 1316908, 2633816, 5267632, 10535264, 21070528]

約数ペア:

[(1, 21070528), (2, 10535264), (4, 5267632), (8, 2633816), (16, 1316908), (32, 658454), (64, 329227), (71, 296768), (142, 148384), (284, 74192), (568, 37096), (1136, 18548), (2272, 9274), (4544, 4637)]