21560656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103657}}^1$

素因数の和:103678

約数の個数: 20

約数和(自身を含む): 44987572

約数和(自身を除く): 23426916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 103657, 207314, 414628, 829256, 1347541, 1658512, 2695082, 5390164, 10780328, 21560656]

約数ペア:

[(1, 21560656), (2, 10780328), (4, 5390164), (8, 2695082), (13, 1658512), (16, 1347541), (26, 829256), (52, 414628), (104, 207314), (208, 103657)]