20415703

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{773}}^1$

素因数の和:812

約数の個数: 20

約数和(自身を含む): 26015688

約数和(自身を除く): 5599985

約数列:

[1, 7, 11, 49, 77, 343, 539, 773, 2401, 3773, 5411, 8503, 26411, 37877, 59521, 265139, 416647, 1855973, 2916529, 20415703]

約数ペア:

[(1, 20415703), (7, 2916529), (11, 1855973), (49, 416647), (77, 265139), (343, 59521), (539, 37877), (773, 26411), (2401, 8503), (3773, 5411)]