19855385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7681}}^1$

素因数の和:7744

約数の個数: 16

約数和(自身を含む): 26548992

約数和(自身を除く): 6693607

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 7681, 38405, 84491, 361007, 422455, 1805035, 3971077, 19855385]

約数ペア:

[(1, 19855385), (5, 3971077), (11, 1805035), (47, 422455), (55, 361007), (235, 84491), (517, 38405), (2585, 7681)]