21290111

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:382

約数の個数: 16

約数和(自身を含む): 23079168

約数和(自身を除く): 1789057

約数列:

[1, 23, 41, 107, 211, 943, 2461, 4387, 4853, 8651, 22577, 100901, 198973, 519271, 925657, 21290111]

約数ペア:

[(1, 21290111), (23, 925657), (41, 519271), (107, 198973), (211, 100901), (943, 22577), (2461, 8651), (4387, 4853)]