16986753

素因数分解:

$3^4\times 7^1\times {\mathrm{29959}}^1$

素因数の和:29978

約数の個数: 20

約数和(自身を含む): 29001280

約数和(自身を除く): 12014527

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 29959, 89877, 209713, 269631, 629139, 808893, 1887417, 2426679, 5662251, 16986753]

約数ペア:

[(1, 16986753), (3, 5662251), (7, 2426679), (9, 1887417), (21, 808893), (27, 629139), (63, 269631), (81, 209713), (189, 89877), (567, 29959)]