21172581

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3527}}^1$

素因数の和:3585

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 11849499

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 667, 2001, 3527, 6003, 10581, 31743, 81121, 102283, 243363, 306849, 730089, 920547, 2352509, 7057527, 21172581]

約数ペア:

[(1, 21172581), (3, 7057527), (9, 2352509), (23, 920547), (29, 730089), (69, 306849), (87, 243363), (207, 102283), (261, 81121), (667, 31743), (2001, 10581), (3527, 6003)]