18001473

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{881}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 28153440

約数和(自身を除く): 10151967

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 881, 973, 2643, 2919, 6167, 6811, 18501, 20433, 43169, 122459, 129507, 367377, 857213, 2571639, 6000491, 18001473]

約数ペア:

[(1, 18001473), (3, 6000491), (7, 2571639), (21, 857213), (49, 367377), (139, 129507), (147, 122459), (417, 43169), (881, 20433), (973, 18501), (2643, 6811), (2919, 6167)]