19886643

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{659}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 32947200

約数和(自身を除く): 13060557

約数列:

[1, 3, 7, 9, 21, 63, 479, 659, 1437, 1977, 3353, 4311, 4613, 5931, 10059, 13839, 30177, 41517, 315661, 946983, 2209627, 2840949, 6628881, 19886643]

約数ペア:

[(1, 19886643), (3, 6628881), (7, 2840949), (9, 2209627), (21, 946983), (63, 315661), (479, 41517), (659, 30177), (1437, 13839), (1977, 10059), (3353, 5931), (4311, 4613)]