21241616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120691}}^1$

素因数の和:120710

約数の個数: 20

約数和(自身を含む): 44897424

約数和(自身を除く): 23655808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120691, 241382, 482764, 965528, 1327601, 1931056, 2655202, 5310404, 10620808, 21241616]

約数ペア:

[(1, 21241616), (2, 10620808), (4, 5310404), (8, 2655202), (11, 1931056), (16, 1327601), (22, 965528), (44, 482764), (88, 241382), (176, 120691)]