18690465

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{30391}}^1$

素因数の和:30440

約数の個数: 16

約数和(自身を含む): 30635136

約数和(自身を除く): 11944671

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 30391, 91173, 151955, 455865, 1246031, 3738093, 6230155, 18690465]

約数ペア:

[(1, 18690465), (3, 6230155), (5, 3738093), (15, 1246031), (41, 455865), (123, 151955), (205, 91173), (615, 30391)]