20485861

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 23328000

約数和(自身を除く): 2842139

約数列:

[1, 11, 29, 149, 319, 431, 1639, 4321, 4741, 12499, 47531, 64219, 137489, 706409, 1862351, 20485861]

約数ペア:

[(1, 20485861), (11, 1862351), (29, 706409), (149, 137489), (319, 64219), (431, 47531), (1639, 12499), (4321, 4741)]