131109

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 16

約数和(自身を含む): 198720

約数和(自身を除く): 67611

約数列:

[1, 3, 11, 29, 33, 87, 137, 319, 411, 957, 1507, 3973, 4521, 11919, 43703, 131109]

約数ペア:

[(1, 131109), (3, 43703), (11, 11919), (29, 4521), (33, 3973), (87, 1507), (137, 957), (319, 411)]