18777717

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1361}}^1$

素因数の和:1450

約数の個数: 32

約数和(自身を含む): 32252160

約数和(自身を除く): 13474443

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1361, 1533, 1971, 4083, 4599, 9527, 12249, 13797, 28581, 36747, 85743, 99353, 257229, 298059, 695471, 894177, 2086413, 2682531, 6259239, 18777717]

約数ペア:

[(1, 18777717), (3, 6259239), (7, 2682531), (9, 2086413), (21, 894177), (27, 695471), (63, 298059), (73, 257229), (189, 99353), (219, 85743), (511, 36747), (657, 28581), (1361, 13797), (1533, 12249), (1971, 9527), (4083, 4599)]