20558817

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1103}}^1$

素因数の和:1237

約数の個数: 24

約数和(自身を含む): 31574400

約数和(自身を除く): 11015583

約数列:

[1, 3, 9, 19, 57, 109, 171, 327, 981, 1103, 2071, 3309, 6213, 9927, 18639, 20957, 62871, 120227, 188613, 360681, 1082043, 2284313, 6852939, 20558817]

約数ペア:

[(1, 20558817), (3, 6852939), (9, 2284313), (19, 1082043), (57, 360681), (109, 188613), (171, 120227), (327, 62871), (981, 20957), (1103, 18639), (2071, 9927), (3309, 6213)]