21035515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1201}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 26309376

約数和(自身を除く): 5273861

約数列:

[1, 5, 31, 113, 155, 565, 1201, 3503, 6005, 17515, 37231, 135713, 186155, 678565, 4207103, 21035515]

約数ペア:

[(1, 21035515), (5, 4207103), (31, 678565), (113, 186155), (155, 135713), (565, 37231), (1201, 17515), (3503, 6005)]