18714890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 35012736

約数和(自身を除く): 16297846

約数列:

[1, 2, 5, 10, 43, 71, 86, 142, 215, 355, 430, 613, 710, 1226, 3053, 3065, 6106, 6130, 15265, 26359, 30530, 43523, 52718, 87046, 131795, 217615, 263590, 435230, 1871489, 3742978, 9357445, 18714890]

約数ペア:

[(1, 18714890), (2, 9357445), (5, 3742978), (10, 1871489), (43, 435230), (71, 263590), (86, 217615), (142, 131795), (215, 87046), (355, 52718), (430, 43523), (613, 30530), (710, 26359), (1226, 15265), (3053, 6130), (3065, 6106)]