20996475268

素因数分解:

$2^2\times {\mathrm{393871}}^1\times {\mathrm{13327}}^1$

素因数の和:407202

約数の個数: 12

約数和(自身を含む): 36746682112

約数和(自身を除く): 15750206844

約数列:

[1, 2, 4, 13327, 26654, 53308, 393871, 787742, 1575484, 5249118817, 10498237634, 20996475268]

約数ペア:

[(1, 20996475268), (2, 10498237634), (4, 5249118817), (13327, 1575484), (26654, 787742), (53308, 393871)]