18672129

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{953}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 30955392

約数和(自身を除く): 12283263

約数列:

[1, 3, 7, 9, 21, 63, 311, 933, 953, 2177, 2799, 2859, 6531, 6671, 8577, 19593, 20013, 60039, 296383, 889149, 2074681, 2667447, 6224043, 18672129]

約数ペア:

[(1, 18672129), (3, 6224043), (7, 2667447), (9, 2074681), (21, 889149), (63, 296383), (311, 60039), (933, 20013), (953, 19593), (2177, 8577), (2799, 6671), (2859, 6531)]