21055728

素因数分解:

$2^4\times 3^1\times {\mathrm{438661}}^1$

素因数の和:438672

約数の個数: 20

約数和(自身を含む): 54394088

約数和(自身を除く): 33338360

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 438661, 877322, 1315983, 1754644, 2631966, 3509288, 5263932, 7018576, 10527864, 21055728]

約数ペア:

[(1, 21055728), (2, 10527864), (3, 7018576), (4, 5263932), (6, 3509288), (8, 2631966), (12, 1754644), (16, 1315983), (24, 877322), (48, 438661)]