21796808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{247691}}^1$

素因数の和:247708

約数の個数: 16

約数和(自身を含む): 44584560

約数和(自身を除く): 22787752

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 247691, 495382, 990764, 1981528, 2724601, 5449202, 10898404, 21796808]

約数ペア:

[(1, 21796808), (2, 10898404), (4, 5449202), (8, 2724601), (11, 1981528), (22, 990764), (44, 495382), (88, 247691)]