1218159

素因数分解:

$3^7\times {\mathrm{557}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 1830240

約数和(自身を除く): 612081

約数列:

[1, 3, 9, 27, 81, 243, 557, 729, 1671, 2187, 5013, 15039, 45117, 135351, 406053, 1218159]

約数ペア:

[(1, 1218159), (3, 406053), (9, 135351), (27, 45117), (81, 15039), (243, 5013), (557, 2187), (729, 1671)]