21671816

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{857}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 42471000

約数和(自身を除く): 20799184

約数列:

[1, 2, 4, 8, 29, 58, 109, 116, 218, 232, 436, 857, 872, 1714, 3161, 3428, 6322, 6856, 12644, 24853, 25288, 49706, 93413, 99412, 186826, 198824, 373652, 747304, 2708977, 5417954, 10835908, 21671816]

約数ペア:

[(1, 21671816), (2, 10835908), (4, 5417954), (8, 2708977), (29, 747304), (58, 373652), (109, 198824), (116, 186826), (218, 99412), (232, 93413), (436, 49706), (857, 25288), (872, 24853), (1714, 12644), (3161, 6856), (3428, 6322)]