21645423

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 32207760

約数和(自身を除く): 10562337

約数列:

[1, 3, 9, 61, 89, 183, 267, 443, 549, 801, 1329, 3987, 5429, 16287, 27023, 39427, 48861, 81069, 118281, 243207, 354843, 2405047, 7215141, 21645423]

約数ペア:

[(1, 21645423), (3, 7215141), (9, 2405047), (61, 354843), (89, 243207), (183, 118281), (267, 81069), (443, 48861), (549, 39427), (801, 27023), (1329, 16287), (3987, 5429)]