20255985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19571}}^1$

素因数の和:19605

約数の個数: 24

約数和(自身を含む): 36638784

約数和(自身を除く): 16382799

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19571, 58713, 97855, 176139, 293565, 450133, 880695, 1350399, 2250665, 4051197, 6751995, 20255985]

約数ペア:

[(1, 20255985), (3, 6751995), (5, 4051197), (9, 2250665), (15, 1350399), (23, 880695), (45, 450133), (69, 293565), (115, 176139), (207, 97855), (345, 58713), (1035, 19571)]