20341948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{719}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 38949120

約数和(自身を除く): 18607172

約数列:

[1, 2, 4, 11, 22, 44, 643, 719, 1286, 1438, 2572, 2876, 7073, 7909, 14146, 15818, 28292, 31636, 462317, 924634, 1849268, 5085487, 10170974, 20341948]

約数ペア:

[(1, 20341948), (2, 10170974), (4, 5085487), (11, 1849268), (22, 924634), (44, 462317), (643, 31636), (719, 28292), (1286, 15818), (1438, 14146), (2572, 7909), (2876, 7073)]