31390331

素因数分解:

$7^3\times {\mathrm{23}}^2\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 24

約数和(自身を含む): 38488800

約数和(自身を除く): 7098469

約数列:

[1, 7, 23, 49, 161, 173, 343, 529, 1127, 1211, 3703, 3979, 7889, 8477, 25921, 27853, 59339, 91517, 181447, 194971, 640619, 1364797, 4484333, 31390331]

約数ペア:

[(1, 31390331), (7, 4484333), (23, 1364797), (49, 640619), (161, 194971), (173, 181447), (343, 91517), (529, 59339), (1127, 27853), (1211, 25921), (3703, 8477), (3979, 7889)]