20667284

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42701}}^1$

素因数の和:42727

約数の個数: 18

約数和(自身を含む): 39755562

約数和(自身を除く): 19088278

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42701, 85402, 170804, 469711, 939422, 1878844, 5166821, 10333642, 20667284]

約数ペア:

[(1, 20667284), (2, 10333642), (4, 5166821), (11, 1878844), (22, 939422), (44, 469711), (121, 170804), (242, 85402), (484, 42701)]