20417881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 23102208

約数和(自身を除く): 2684327

約数列:

[1, 11, 47, 73, 517, 541, 803, 3431, 5951, 25427, 37741, 39493, 279697, 434423, 1856171, 20417881]

約数ペア:

[(1, 20417881), (11, 1856171), (47, 434423), (73, 279697), (517, 39493), (541, 37741), (803, 25427), (3431, 5951)]