21279203

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:658

約数の個数: 16

約数和(自身を含む): 24053760

約数和(自身を除く): 2774557

約数列:

[1, 11, 47, 79, 517, 521, 869, 3713, 5731, 24487, 40843, 41159, 269357, 452749, 1934473, 21279203]

約数ペア:

[(1, 21279203), (11, 1934473), (47, 452749), (79, 269357), (517, 41159), (521, 40843), (869, 24487), (3713, 5731)]