20999294

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{2293}}^1$

素因数の和:2555

約数の個数: 16

約数和(自身を含む): 33308880

約数和(自身を除く): 12309586

約数列:

[1, 2, 19, 38, 241, 482, 2293, 4579, 4586, 9158, 43567, 87134, 552613, 1105226, 10499647, 20999294]

約数ペア:

[(1, 20999294), (2, 10499647), (19, 1105226), (38, 552613), (241, 87134), (482, 43567), (2293, 9158), (4579, 4586)]