21806104

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1471}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 21912296

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1471, 1853, 2942, 3706, 5884, 7412, 11768, 14824, 25007, 50014, 100028, 160339, 200056, 320678, 641356, 1282712, 2725763, 5451526, 10903052, 21806104]

約数ペア:

[(1, 21806104), (2, 10903052), (4, 5451526), (8, 2725763), (17, 1282712), (34, 641356), (68, 320678), (109, 200056), (136, 160339), (218, 100028), (436, 50014), (872, 25007), (1471, 14824), (1853, 11768), (2942, 7412), (3706, 5884)]