20551856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98807}}^1$

素因数の和:98828

約数の個数: 20

約数和(自身を含む): 42882672

約数和(自身を除く): 22330816

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98807, 197614, 395228, 790456, 1284491, 1580912, 2568982, 5137964, 10275928, 20551856]

約数ペア:

[(1, 20551856), (2, 10275928), (4, 5137964), (8, 2568982), (13, 1580912), (16, 1284491), (26, 790456), (52, 395228), (104, 197614), (208, 98807)]