2557709

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 3248640

約数和(自身を除く): 690931

約数列:

[1, 7, 11, 59, 77, 413, 563, 649, 3941, 4543, 6193, 33217, 43351, 232519, 365387, 2557709]

約数ペア:

[(1, 2557709), (7, 365387), (11, 232519), (59, 43351), (77, 33217), (413, 6193), (563, 4543), (649, 3941)]