20805213219

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6561089}}^1$

素因数の和:6561250

約数の個数: 16

約数和(自身を含む): 31913141760

約数和(自身を除く): 11107928541

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6561089, 19683267, 45927623, 137782869, 990724439, 2972173317, 6935071073, 20805213219]

約数ペア:

[(1, 20805213219), (3, 6935071073), (7, 2972173317), (21, 990724439), (151, 137782869), (453, 45927623), (1057, 19683267), (3171, 6561089)]