21124510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1061}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 41749344

約数和(自身を除く): 20624834

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1061, 1810, 1991, 2122, 3982, 5305, 9955, 10610, 11671, 19910, 23342, 58355, 116710, 192041, 384082, 960205, 1920410, 2112451, 4224902, 10562255, 21124510]

約数ペア:

[(1, 21124510), (2, 10562255), (5, 4224902), (10, 2112451), (11, 1920410), (22, 960205), (55, 384082), (110, 192041), (181, 116710), (362, 58355), (905, 23342), (1061, 19910), (1810, 11671), (1991, 10610), (2122, 9955), (3982, 5305)]