21270756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136351}}^1$

素因数の和:136371

約数の個数: 24

約数和(自身を含む): 53449984

約数和(自身を除く): 32179228

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136351, 272702, 409053, 545404, 818106, 1636212, 1772563, 3545126, 5317689, 7090252, 10635378, 21270756]

約数ペア:

[(1, 21270756), (2, 10635378), (3, 7090252), (4, 5317689), (6, 3545126), (12, 1772563), (13, 1636212), (26, 818106), (39, 545404), (52, 409053), (78, 272702), (156, 136351)]