18180909

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:282

約数の個数: 32

約数和(自身を含む): 27907200

約数和(自身を除く): 9726291

約数列:

[1, 3, 9, 27, 59, 101, 113, 177, 303, 339, 531, 909, 1017, 1593, 2727, 3051, 5959, 6667, 11413, 17877, 20001, 34239, 53631, 60003, 102717, 160893, 180009, 308151, 673367, 2020101, 6060303, 18180909]

約数ペア:

[(1, 18180909), (3, 6060303), (9, 2020101), (27, 673367), (59, 308151), (101, 180009), (113, 160893), (177, 102717), (303, 60003), (339, 53631), (531, 34239), (909, 20001), (1017, 17877), (1593, 11413), (2727, 6667), (3051, 5959)]