18203211

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:377

約数の個数: 40

約数和(自身を含む): 29882160

約数和(自身を除く): 11678949

約数列:

[1, 3, 9, 13, 27, 39, 59, 81, 117, 177, 293, 351, 531, 767, 879, 1053, 1593, 2301, 2637, 3809, 4779, 6903, 7911, 11427, 17287, 20709, 23733, 34281, 51861, 62127, 102843, 155583, 224731, 308529, 466749, 674193, 1400247, 2022579, 6067737, 18203211]

約数ペア:

[(1, 18203211), (3, 6067737), (9, 2022579), (13, 1400247), (27, 674193), (39, 466749), (59, 308529), (81, 224731), (117, 155583), (177, 102843), (293, 62127), (351, 51861), (531, 34281), (767, 23733), (879, 20709), (1053, 17287), (1593, 11427), (2301, 7911), (2637, 6903), (3809, 4779)]