81790233

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{28429}}^1$

素因数の和:28576

約数の個数: 16

約数和(自身を含む): 125546880

約数和(自身を除く): 43756647

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 28429, 85287, 199003, 597009, 3894773, 11684319, 27263411, 81790233]

約数ペア:

[(1, 81790233), (3, 27263411), (7, 11684319), (21, 3894773), (137, 597009), (411, 199003), (959, 85287), (2877, 28429)]