18081973

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4621}}^1$

素因数の和:4684

約数の個数: 16

約数和(自身を含む): 22777216

約数和(自身を除く): 4695243

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 4621, 32347, 60073, 198703, 420511, 1390921, 2583139, 18081973]

約数ペア:

[(1, 18081973), (7, 2583139), (13, 1390921), (43, 420511), (91, 198703), (301, 60073), (559, 32347), (3913, 4621)]