17921709

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{51059}}^1$

素因数の和:51081

約数の個数: 16

約数和(自身を含む): 28593600

約数和(自身を除く): 10671891

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 51059, 153177, 459531, 663767, 1378593, 1991301, 5973903, 17921709]

約数ペア:

[(1, 17921709), (3, 5973903), (9, 1991301), (13, 1378593), (27, 663767), (39, 459531), (117, 153177), (351, 51059)]