18238809

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1877}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 25240320

約数和(自身を除く): 7001511

約数列:

[1, 3, 41, 79, 123, 237, 1877, 3239, 5631, 9717, 76957, 148283, 230871, 444849, 6079603, 18238809]

約数ペア:

[(1, 18238809), (3, 6079603), (41, 444849), (79, 230871), (123, 148283), (237, 76957), (1877, 9717), (3239, 5631)]