21388578

素因数分解:

$2^1\times 3^1\times {\mathrm{127}}^1\times {\mathrm{28069}}^1$

素因数の和:28201

約数の個数: 16

約数和(自身を含む): 43115520

約数和(自身を除く): 21726942

約数列:

[1, 2, 3, 6, 127, 254, 381, 762, 28069, 56138, 84207, 168414, 3564763, 7129526, 10694289, 21388578]

約数ペア:

[(1, 21388578), (2, 10694289), (3, 7129526), (6, 3564763), (127, 168414), (254, 84207), (381, 56138), (762, 28069)]