21712503

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{2423}}^1$

素因数の和:2558

約数の個数: 16

約数和(自身を含む): 30251520

約数和(自身を除く): 8539017

約数列:

[1, 3, 29, 87, 103, 309, 2423, 2987, 7269, 8961, 70267, 210801, 249569, 748707, 7237501, 21712503]

約数ペア:

[(1, 21712503), (3, 7237501), (29, 748707), (87, 249569), (103, 210801), (309, 70267), (2423, 8961), (2987, 7269)]