16520679

素因数分解:

$3^4\times 7^1\times {\mathrm{29137}}^1$

素因数の和:29156

約数の個数: 20

約数和(自身を含む): 28205584

約数和(自身を除く): 11684905

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 29137, 87411, 203959, 262233, 611877, 786699, 1835631, 2360097, 5506893, 16520679]

約数ペア:

[(1, 16520679), (3, 5506893), (7, 2360097), (9, 1835631), (21, 786699), (27, 611877), (63, 262233), (81, 203959), (189, 87411), (567, 29137)]