19968867

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3767}}^1$

素因数の和:3823

約数の個数: 24

約数和(自身を含む): 31349760

約数和(自身を除く): 11380893

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 3767, 5301, 11301, 33903, 71573, 116777, 214719, 350331, 644157, 1050993, 2218763, 6656289, 19968867]

約数ペア:

[(1, 19968867), (3, 6656289), (9, 2218763), (19, 1050993), (31, 644157), (57, 350331), (93, 214719), (171, 116777), (279, 71573), (589, 33903), (1767, 11301), (3767, 5301)]