28278628

素因数分解:

$2^2\times 7^1\times {\mathrm{1009951}}^1$

素因数の和:1009962

約数の個数: 12

約数和(自身を含む): 56557312

約数和(自身を除く): 28278684

約数列:

[1, 2, 4, 7, 14, 28, 1009951, 2019902, 4039804, 7069657, 14139314, 28278628]

約数ペア:

[(1, 28278628), (2, 14139314), (4, 7069657), (7, 4039804), (14, 2019902), (28, 1009951)]