18111665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 25958016

約数和(自身を除く): 7846351

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 347, 365, 715, 803, 949, 1735, 3817, 4015, 4511, 4745, 10439, 19085, 22555, 25331, 49621, 52195, 126655, 248105, 278641, 329303, 1393205, 1646515, 3622333, 18111665]

約数ペア:

[(1, 18111665), (5, 3622333), (11, 1646515), (13, 1393205), (55, 329303), (65, 278641), (73, 248105), (143, 126655), (347, 52195), (365, 49621), (715, 25331), (803, 22555), (949, 19085), (1735, 10439), (3817, 4745), (4015, 4511)]