18723189

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{7639}}^1$

素因数の和:7704

約数の個数: 16

約数和(自身を含む): 26892800

約数和(自身を除く): 8169611

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 7639, 22917, 145141, 328477, 435423, 985431, 6241063, 18723189]

約数ペア:

[(1, 18723189), (3, 6241063), (19, 985431), (43, 435423), (57, 328477), (129, 145141), (817, 22917), (2451, 7639)]