20091721178

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{10453549}}^1$

素因数の和:10453613

約数の個数: 12

約数和(自身を含む): 31141125450

約数和(自身を除く): 11049404272

約数列:

[1, 2, 31, 62, 961, 1922, 10453549, 20907098, 324060019, 648120038, 10045860589, 20091721178]

約数ペア:

[(1, 20091721178), (2, 10045860589), (31, 648120038), (62, 324060019), (961, 20907098), (1922, 10453549)]