18810531

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 9625149

約数列:

[1, 3, 9, 29, 87, 97, 261, 291, 743, 873, 2229, 2813, 6687, 8439, 21547, 25317, 64641, 72071, 193923, 216213, 648639, 2090059, 6270177, 18810531]

約数ペア:

[(1, 18810531), (3, 6270177), (9, 2090059), (29, 648639), (87, 216213), (97, 193923), (261, 72071), (291, 64641), (743, 25317), (873, 21547), (2229, 8439), (2813, 6687)]