20811472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{118247}}^1$

素因数の和:118266

約数の個数: 20

約数和(自身を含む): 43988256

約数和(自身を除く): 23176784

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 118247, 236494, 472988, 945976, 1300717, 1891952, 2601434, 5202868, 10405736, 20811472]

約数ペア:

[(1, 20811472), (2, 10405736), (4, 5202868), (8, 2601434), (11, 1891952), (16, 1300717), (22, 945976), (44, 472988), (88, 236494), (176, 118247)]