20441608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1559}}^1$

素因数の和:1725

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 21678392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 149, 298, 596, 1192, 1559, 1639, 3118, 3278, 6236, 6556, 12472, 13112, 17149, 34298, 68596, 137192, 232291, 464582, 929164, 1858328, 2555201, 5110402, 10220804, 20441608]

約数ペア:

[(1, 20441608), (2, 10220804), (4, 5110402), (8, 2555201), (11, 1858328), (22, 929164), (44, 464582), (88, 232291), (149, 137192), (298, 68596), (596, 34298), (1192, 17149), (1559, 13112), (1639, 12472), (3118, 6556), (3278, 6236)]