21059770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1697}}^1$

素因数の和:1794

約数の個数: 32

約数和(自身を含む): 40711248

約数和(自身を除く): 19651478

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1697, 2482, 3394, 6205, 8485, 12410, 16970, 28849, 57698, 123881, 144245, 247762, 288490, 619405, 1238810, 2105977, 4211954, 10529885, 21059770]

約数ペア:

[(1, 21059770), (2, 10529885), (5, 4211954), (10, 2105977), (17, 1238810), (34, 619405), (73, 288490), (85, 247762), (146, 144245), (170, 123881), (365, 57698), (730, 28849), (1241, 16970), (1697, 12410), (2482, 8485), (3394, 6205)]