21231683

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 5033917

約数列:

[1, 11, 19, 29, 31, 113, 209, 319, 341, 551, 589, 899, 1243, 2147, 3277, 3503, 6061, 6479, 9889, 17081, 23617, 36047, 38533, 62263, 66557, 101587, 187891, 684893, 732127, 1117457, 1930153, 21231683]

約数ペア:

[(1, 21231683), (11, 1930153), (19, 1117457), (29, 732127), (31, 684893), (113, 187891), (209, 101587), (319, 66557), (341, 62263), (551, 38533), (589, 36047), (899, 23617), (1243, 17081), (2147, 9889), (3277, 6479), (3503, 6061)]