21040528

素因数分解:

$2^4\times {\mathrm{1123}}^1\times {\mathrm{1171}}^1$

素因数の和:2302

約数の個数: 20

約数和(自身を含む): 40837168

約数和(自身を除く): 19796640

約数列:

[1, 2, 4, 8, 16, 1123, 1171, 2246, 2342, 4492, 4684, 8984, 9368, 17968, 18736, 1315033, 2630066, 5260132, 10520264, 21040528]

約数ペア:

[(1, 21040528), (2, 10520264), (4, 5260132), (8, 2630066), (16, 1315033), (1123, 18736), (1171, 17968), (2246, 9368), (2342, 8984), (4492, 4684)]