181251

素因数分解:

$3^3\times 7^2\times {\mathrm{137}}^1$

素因数の和:160

約数の個数: 24

約数和(自身を含む): 314640

約数和(自身を除く): 133389

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 137, 147, 189, 411, 441, 959, 1233, 1323, 2877, 3699, 6713, 8631, 20139, 25893, 60417, 181251]

約数ペア:

[(1, 181251), (3, 60417), (7, 25893), (9, 20139), (21, 8631), (27, 6713), (49, 3699), (63, 2877), (137, 1323), (147, 1233), (189, 959), (411, 441)]