18666357

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8912523

約数列:

[1, 3, 17, 41, 51, 79, 113, 123, 237, 339, 697, 1343, 1921, 2091, 3239, 4029, 4633, 5763, 8927, 9717, 13899, 26781, 55063, 78761, 151759, 165189, 236283, 366007, 455277, 1098021, 6222119, 18666357]

約数ペア:

[(1, 18666357), (3, 6222119), (17, 1098021), (41, 455277), (51, 366007), (79, 236283), (113, 165189), (123, 151759), (237, 78761), (339, 55063), (697, 26781), (1343, 13899), (1921, 9717), (2091, 8927), (3239, 5763), (4029, 4633)]