211380533

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1277}}^1$

素因数の和:1421

約数の個数: 32

約数和(自身を含む): 278256384

約数和(自身を除く): 66875851

約数列:

[1, 7, 13, 17, 91, 107, 119, 221, 749, 1277, 1391, 1547, 1819, 8939, 9737, 12733, 16601, 21709, 23647, 116207, 136639, 151963, 165529, 282217, 956473, 1776307, 1975519, 2322863, 12434149, 16260041, 30197219, 211380533]

約数ペア:

[(1, 211380533), (7, 30197219), (13, 16260041), (17, 12434149), (91, 2322863), (107, 1975519), (119, 1776307), (221, 956473), (749, 282217), (1277, 165529), (1391, 151963), (1547, 136639), (1819, 116207), (8939, 23647), (9737, 21709), (12733, 16601)]