21559291

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{877}}^1$

素因数の和:982

約数の個数: 16

約数和(自身を含む): 24387328

約数和(自身を除く): 2828037

約数列:

[1, 13, 31, 61, 403, 793, 877, 1891, 11401, 24583, 27187, 53497, 353431, 695461, 1658407, 21559291]

約数ペア:

[(1, 21559291), (13, 1658407), (31, 695461), (61, 353431), (403, 53497), (793, 27187), (877, 24583), (1891, 11401)]