18621009

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20899}}^1$

素因数の和:20922

約数の個数: 20

約数和(自身を含む): 30346800

約数和(自身を除く): 11725791

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20899, 62697, 188091, 229889, 564273, 689667, 1692819, 2069001, 6207003, 18621009]

約数ペア:

[(1, 18621009), (3, 6207003), (9, 2069001), (11, 1692819), (27, 689667), (33, 564273), (81, 229889), (99, 188091), (297, 62697), (891, 20899)]