31395681

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{1171}}^1$

素因数の和:1514

約数の個数: 20

約数和(自身を含む): 47081584

約数和(自身を除く): 15685903

約数列:

[1, 3, 9, 27, 81, 331, 993, 1171, 2979, 3513, 8937, 10539, 26811, 31617, 94851, 387601, 1162803, 3488409, 10465227, 31395681]

約数ペア:

[(1, 31395681), (3, 10465227), (9, 3488409), (27, 1162803), (81, 387601), (331, 94851), (993, 31617), (1171, 26811), (2979, 10539), (3513, 8937)]