21199445

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2221}}^1$

素因数の和:2332

約数の個数: 16

約数和(自身を含む): 26877312

約数和(自身を除く): 5677867

約数列:

[1, 5, 23, 83, 115, 415, 1909, 2221, 9545, 11105, 51083, 184343, 255415, 921715, 4239889, 21199445]

約数ペア:

[(1, 21199445), (5, 4239889), (23, 921715), (83, 255415), (115, 184343), (415, 51083), (1909, 11105), (2221, 9545)]