18767457

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{1039}}^1$

素因数の和:1274

約数の個数: 20

約数和(自身を含む): 28188160

約数和(自身を除く): 9420703

約数列:

[1, 3, 9, 27, 81, 223, 669, 1039, 2007, 3117, 6021, 9351, 18063, 28053, 84159, 231697, 695091, 2085273, 6255819, 18767457]

約数ペア:

[(1, 18767457), (3, 6255819), (9, 2085273), (27, 695091), (81, 231697), (223, 84159), (669, 28053), (1039, 18063), (2007, 9351), (3117, 6021)]