15640371

素因数分解:

$3^4\times {\mathrm{353}}^1\times {\mathrm{547}}^1$

素因数の和:912

約数の個数: 20

約数和(自身を含む): 23473032

約数和(自身を除く): 7832661

約数列:

[1, 3, 9, 27, 81, 353, 547, 1059, 1641, 3177, 4923, 9531, 14769, 28593, 44307, 193091, 579273, 1737819, 5213457, 15640371]

約数ペア:

[(1, 15640371), (3, 5213457), (9, 1737819), (27, 579273), (81, 193091), (353, 44307), (547, 28593), (1059, 14769), (1641, 9531), (3177, 4923)]