19991238

素因数分解:

$2^1\times 3^1\times {\mathrm{107}}^1\times {\mathrm{31139}}^1$

素因数の和:31251

約数の個数: 16

約数和(自身を含む): 40357440

約数和(自身を除く): 20366202

約数列:

[1, 2, 3, 6, 107, 214, 321, 642, 31139, 62278, 93417, 186834, 3331873, 6663746, 9995619, 19991238]

約数ペア:

[(1, 19991238), (2, 9995619), (3, 6663746), (6, 3331873), (107, 186834), (214, 93417), (321, 62278), (642, 31139)]