20667856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{117431}}^1$

素因数の和:117450

約数の個数: 20

約数和(自身を含む): 43684704

約数和(自身を除く): 23016848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 117431, 234862, 469724, 939448, 1291741, 1878896, 2583482, 5166964, 10333928, 20667856]

約数ペア:

[(1, 20667856), (2, 10333928), (4, 5166964), (8, 2583482), (11, 1878896), (16, 1291741), (22, 939448), (44, 469724), (88, 234862), (176, 117431)]