20649824

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{49639}}^1$

素因数の和:49662

約数の個数: 24

約数和(自身を含む): 43782480

約数和(自身を除く): 23132656

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 49639, 99278, 198556, 397112, 645307, 794224, 1290614, 1588448, 2581228, 5162456, 10324912, 20649824]

約数ペア:

[(1, 20649824), (2, 10324912), (4, 5162456), (8, 2581228), (13, 1588448), (16, 1290614), (26, 794224), (32, 645307), (52, 397112), (104, 198556), (208, 99278), (416, 49639)]