20620912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99139}}^1$

素因数の和:99160

約数の個数: 20

約数和(自身を含む): 43026760

約数和(自身を除く): 22405848

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99139, 198278, 396556, 793112, 1288807, 1586224, 2577614, 5155228, 10310456, 20620912]

約数ペア:

[(1, 20620912), (2, 10310456), (4, 5155228), (8, 2577614), (13, 1586224), (16, 1288807), (26, 793112), (52, 396556), (104, 198278), (208, 99139)]