2661491

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:362

約数の個数: 16

約数和(自身を含む): 3237888

約数和(自身を除く): 576397

約数列:

[1, 7, 23, 61, 161, 271, 427, 1403, 1897, 6233, 9821, 16531, 43631, 115717, 380213, 2661491]

約数ペア:

[(1, 2661491), (7, 380213), (23, 115717), (61, 43631), (161, 16531), (271, 9821), (427, 6233), (1403, 1897)]