18073251

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6997}}^1$

素因数の和:7051

約数の個数: 24

約数和(自身を含む): 30567264

約数和(自身を除く): 12494013

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 6997, 20991, 48979, 62973, 146937, 286877, 440811, 860631, 2008139, 2581893, 6024417, 18073251]

約数ペア:

[(1, 18073251), (3, 6024417), (7, 2581893), (9, 2008139), (21, 860631), (41, 440811), (63, 286877), (123, 146937), (287, 62973), (369, 48979), (861, 20991), (2583, 6997)]