21790397

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 2315203

約数列:

[1, 19, 29, 71, 551, 557, 1349, 2059, 10583, 16153, 39121, 39547, 306907, 751393, 1146863, 21790397]

約数ペア:

[(1, 21790397), (19, 1146863), (29, 751393), (71, 306907), (551, 39547), (557, 39121), (1349, 16153), (2059, 10583)]