20570481

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 30611880

約数和(自身を除く): 10041399

約数列:

[1, 3, 9, 61, 89, 183, 267, 421, 549, 801, 1263, 3789, 5429, 16287, 25681, 37469, 48861, 77043, 112407, 231129, 337221, 2285609, 6856827, 20570481]

約数ペア:

[(1, 20570481), (3, 6856827), (9, 2285609), (61, 337221), (89, 231129), (183, 112407), (267, 77043), (421, 48861), (549, 37469), (801, 25681), (1263, 16287), (3789, 5429)]