21464219

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 3626341

約数列:

[1, 7, 89, 131, 263, 623, 917, 1841, 11659, 23407, 34453, 81613, 163849, 241171, 3066317, 21464219]

約数ペア:

[(1, 21464219), (7, 3066317), (89, 241171), (131, 163849), (263, 81613), (623, 34453), (917, 23407), (1841, 11659)]