20946794

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{857}}^1$

素因数の和:982

約数の個数: 24

約数和(自身を含む): 34918884

約数和(自身を除く): 13972090

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 857, 1111, 1714, 2222, 9427, 12221, 18854, 24442, 86557, 103697, 173114, 207394, 952127, 1904254, 10473397, 20946794]

約数ペア:

[(1, 20946794), (2, 10473397), (11, 1904254), (22, 952127), (101, 207394), (121, 173114), (202, 103697), (242, 86557), (857, 24442), (1111, 18854), (1714, 12221), (2222, 9427)]