20561517

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5843}}^1$

素因数の和:5889

約数の個数: 24

約数和(自身を含む): 32819904

約数和(自身を除く): 12258387

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5843, 17529, 52587, 99331, 134389, 297993, 403167, 893979, 1209501, 2284613, 6853839, 20561517]

約数ペア:

[(1, 20561517), (3, 6853839), (9, 2284613), (17, 1209501), (23, 893979), (51, 403167), (69, 297993), (153, 134389), (207, 99331), (391, 52587), (1173, 17529), (3519, 5843)]