31721409

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{19913}}^1$

素因数の和:19981

約数の個数: 16

約数和(自身を含む): 47793600

約数和(自身を除く): 16072191

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 19913, 59739, 179217, 537651, 1174867, 3524601, 10573803, 31721409]

約数ペア:

[(1, 31721409), (3, 10573803), (9, 3524601), (27, 1174867), (59, 537651), (177, 179217), (531, 59739), (1593, 19913)]