21117693

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1\times {\mathrm{521}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 28814400

約数和(自身を除く): 7696707

約数列:

[1, 3, 59, 177, 229, 521, 687, 1563, 13511, 30739, 40533, 92217, 119309, 357927, 7039231, 21117693]

約数ペア:

[(1, 21117693), (3, 7039231), (59, 357927), (177, 119309), (229, 92217), (521, 40533), (687, 30739), (1563, 13511)]