21238359818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{911}}^1\times {\mathrm{5501}}^1$

素因数の和:6590

約数の個数: 32

約数和(自身を含む): 34562771712

約数和(自身を除く): 13324411894

約数列:

[1, 2, 13, 26, 163, 326, 911, 1822, 2119, 4238, 5501, 11002, 11843, 23686, 71513, 143026, 148493, 296986, 896663, 1793326, 1930409, 3860818, 5011411, 10022822, 11656619, 23313238, 65148343, 130296686, 816859993, 1633719986, 10619179909, 21238359818]

約数ペア:

[(1, 21238359818), (2, 10619179909), (13, 1633719986), (26, 816859993), (163, 130296686), (326, 65148343), (911, 23313238), (1822, 11656619), (2119, 10022822), (4238, 5011411), (5501, 3860818), (11002, 1930409), (11843, 1793326), (23686, 896663), (71513, 296986), (143026, 148493)]