21513358

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{9281}}^1$

素因数の和:9363

約数の個数: 16

約数和(自身を含む): 34529040

約数和(自身を除く): 13015682

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 9281, 18562, 176339, 352678, 566141, 1132282, 10756679, 21513358]

約数ペア:

[(1, 21513358), (2, 10756679), (19, 1132282), (38, 566141), (61, 352678), (122, 176339), (1159, 18562), (2318, 9281)]