20993825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7129375

約数列:

[1, 5, 23, 25, 29, 115, 145, 575, 667, 725, 1259, 3335, 6295, 16675, 28957, 31475, 36511, 144785, 182555, 723925, 839753, 912775, 4198765, 20993825]

約数ペア:

[(1, 20993825), (5, 4198765), (23, 912775), (25, 839753), (29, 723925), (115, 182555), (145, 144785), (575, 36511), (667, 31475), (725, 28957), (1259, 16675), (3335, 6295)]