20464695

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2381}}^1$

素因数の和:2583

約数の個数: 24

約数和(自身を含む): 35672832

約数和(自身を除く): 15208137

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1719, 2381, 2865, 7143, 8595, 11905, 21429, 35715, 107145, 454771, 1364313, 2273855, 4092939, 6821565, 20464695]

約数ペア:

[(1, 20464695), (3, 6821565), (5, 4092939), (9, 2273855), (15, 1364313), (45, 454771), (191, 107145), (573, 35715), (955, 21429), (1719, 11905), (2381, 8595), (2865, 7143)]