20899505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8837}}^1$

素因数の和:8896

約数の個数: 16

約数和(自身を含む): 27998784

約数和(自身を除く): 7099279

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8837, 44185, 97207, 379991, 486035, 1899955, 4179901, 20899505]

約数ペア:

[(1, 20899505), (5, 4179901), (11, 1899955), (43, 486035), (55, 379991), (215, 97207), (473, 44185), (2365, 8837)]