81940694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{36877}}^1$

素因数の和:36991

約数の個数: 16

約数和(自身を含む): 135416016

約数和(自身を除く): 53475322

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 36877, 73754, 405647, 811294, 3724577, 7449154, 40970347, 81940694]

約数ペア:

[(1, 81940694), (2, 40970347), (11, 7449154), (22, 3724577), (101, 811294), (202, 405647), (1111, 73754), (2222, 36877)]