21994004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2137}}^1$

素因数の和:2255

約数の個数: 24

約数和(自身を含む): 40228608

約数和(自身を除く): 18234604

約数列:

[1, 2, 4, 31, 62, 83, 124, 166, 332, 2137, 2573, 4274, 5146, 8548, 10292, 66247, 132494, 177371, 264988, 354742, 709484, 5498501, 10997002, 21994004]

約数ペア:

[(1, 21994004), (2, 10997002), (4, 5498501), (31, 709484), (62, 354742), (83, 264988), (124, 177371), (166, 132494), (332, 66247), (2137, 10292), (2573, 8548), (4274, 5146)]