20970825

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12157}}^1$

素因数の和:12193

約数の個数: 24

約数和(自身を含む): 36182208

約数和(自身を除く): 15211383

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12157, 36471, 60785, 182355, 279611, 303925, 838833, 911775, 1398055, 4194165, 6990275, 20970825]

約数ペア:

[(1, 20970825), (3, 6990275), (5, 4194165), (15, 1398055), (23, 911775), (25, 838833), (69, 303925), (75, 279611), (115, 182355), (345, 60785), (575, 36471), (1725, 12157)]