18681946

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^2\times {\mathrm{109}}^1$

素因数の和:270

約数の個数: 24

約数和(自身を含む): 30371220

約数和(自身を除く): 11689274

約数列:

[1, 2, 17, 34, 71, 109, 142, 218, 1207, 1853, 2414, 3706, 5041, 7739, 10082, 15478, 85697, 131563, 171394, 263126, 549469, 1098938, 9340973, 18681946]

約数ペア:

[(1, 18681946), (2, 9340973), (17, 1098938), (34, 549469), (71, 263126), (109, 171394), (142, 131563), (218, 85697), (1207, 15478), (1853, 10082), (2414, 7739), (3706, 5041)]