21405477

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1\times {\mathrm{271}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 29023488

約数和(自身を除く): 7618011

約数列:

[1, 3, 113, 233, 271, 339, 699, 813, 26329, 30623, 63143, 78987, 91869, 189429, 7135159, 21405477]

約数ペア:

[(1, 21405477), (3, 7135159), (113, 189429), (233, 91869), (271, 78987), (339, 63143), (699, 30623), (813, 26329)]