20736728

素因数分解:

$2^3\times {\mathrm{1607}}^1\times {\mathrm{1613}}^1$

素因数の和:3226

約数の個数: 16

約数和(自身を含む): 38929680

約数和(自身を除く): 18192952

約数列:

[1, 2, 4, 8, 1607, 1613, 3214, 3226, 6428, 6452, 12856, 12904, 2592091, 5184182, 10368364, 20736728]

約数ペア:

[(1, 20736728), (2, 10368364), (4, 5184182), (8, 2592091), (1607, 12904), (1613, 12856), (3214, 6452), (3226, 6428)]