21877888765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{41729}}^1$

素因数の和:41901

約数の個数: 32

約数和(自身を含む): 28266900480

約数和(自身を除く): 6389011715

約数列:

[1, 5, 23, 47, 97, 115, 235, 485, 1081, 2231, 4559, 5405, 11155, 22795, 41729, 104857, 208645, 524285, 959767, 1961263, 4047713, 4798835, 9806315, 20238565, 45109049, 93097399, 190242511, 225545245, 465486995, 951212555, 4375577753, 21877888765]

約数ペア:

[(1, 21877888765), (5, 4375577753), (23, 951212555), (47, 465486995), (97, 225545245), (115, 190242511), (235, 93097399), (485, 45109049), (1081, 20238565), (2231, 9806315), (4559, 4798835), (5405, 4047713), (11155, 1961263), (22795, 959767), (41729, 524285), (104857, 208645)]