20577776

素因数分解:

$2^4\times {\mathrm{277}}^1\times {\mathrm{4643}}^1$

素因数の和:4928

約数の個数: 20

約数和(自身を含む): 40021992

約数和(自身を除く): 19444216

約数列:

[1, 2, 4, 8, 16, 277, 554, 1108, 2216, 4432, 4643, 9286, 18572, 37144, 74288, 1286111, 2572222, 5144444, 10288888, 20577776]

約数ペア:

[(1, 20577776), (2, 10288888), (4, 5144444), (8, 2572222), (16, 1286111), (277, 74288), (554, 37144), (1108, 18572), (2216, 9286), (4432, 4643)]