21949947

素因数分解:

$3^5\times {\mathrm{59}}^1\times {\mathrm{1531}}^1$

素因数の和:1605

約数の個数: 24

約数和(自身を含む): 33458880

約数和(自身を除く): 11508933

約数列:

[1, 3, 9, 27, 59, 81, 177, 243, 531, 1531, 1593, 4593, 4779, 13779, 14337, 41337, 90329, 124011, 270987, 372033, 812961, 2438883, 7316649, 21949947]

約数ペア:

[(1, 21949947), (3, 7316649), (9, 2438883), (27, 812961), (59, 372033), (81, 270987), (177, 124011), (243, 90329), (531, 41337), (1531, 14337), (1593, 13779), (4593, 4779)]