20902617

素因数分解:

$3^6\times {\mathrm{53}}^1\times {\mathrm{541}}^1$

素因数の和:612

約数の個数: 28

約数和(自身を含む): 31989924

約数和(自身を除く): 11087307

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 541, 729, 1431, 1623, 4293, 4869, 12879, 14607, 28673, 38637, 43821, 86019, 131463, 258057, 394389, 774171, 2322513, 6967539, 20902617]

約数ペア:

[(1, 20902617), (3, 6967539), (9, 2322513), (27, 774171), (53, 394389), (81, 258057), (159, 131463), (243, 86019), (477, 43821), (541, 38637), (729, 28673), (1431, 14607), (1623, 12879), (4293, 4869)]