128123613

素因数分解:

$3^4\times {\mathrm{661}}^1\times {\mathrm{2393}}^1$

素因数の和:3066

約数の個数: 20

約数和(自身を含む): 191764188

約数和(自身を除く): 63640575

約数列:

[1, 3, 9, 27, 81, 661, 1983, 2393, 5949, 7179, 17847, 21537, 53541, 64611, 193833, 1581773, 4745319, 14235957, 42707871, 128123613]

約数ペア:

[(1, 128123613), (3, 42707871), (9, 14235957), (27, 4745319), (81, 1581773), (661, 193833), (1983, 64611), (2393, 53541), (5949, 21537), (7179, 17847)]