21940028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{4937}}^1$

素因数の和:5053

約数の個数: 24

約数和(自身を含む): 42308784

約数和(自身を除く): 20368756

約数列:

[1, 2, 4, 11, 22, 44, 101, 202, 404, 1111, 2222, 4444, 4937, 9874, 19748, 54307, 108614, 217228, 498637, 997274, 1994548, 5485007, 10970014, 21940028]

約数ペア:

[(1, 21940028), (2, 10970014), (4, 5485007), (11, 1994548), (22, 997274), (44, 498637), (101, 217228), (202, 108614), (404, 54307), (1111, 19748), (2222, 9874), (4444, 4937)]