12981296

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{7877}}^1$

素因数の和:7988

約数の個数: 20

約数和(自身を含む): 25398672

約数和(自身を除く): 12417376

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 7877, 15754, 31508, 63016, 126032, 811331, 1622662, 3245324, 6490648, 12981296]

約数ペア:

[(1, 12981296), (2, 6490648), (4, 3245324), (8, 1622662), (16, 811331), (103, 126032), (206, 63016), (412, 31508), (824, 15754), (1648, 7877)]