18679451

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 23412480

約数和(自身を除く): 4733029

約数列:

[1, 7, 19, 29, 133, 167, 203, 551, 841, 1169, 3173, 3857, 4843, 5887, 15979, 22211, 33901, 92017, 111853, 140447, 644119, 983129, 2668493, 18679451]

約数ペア:

[(1, 18679451), (7, 2668493), (19, 983129), (29, 644119), (133, 140447), (167, 111853), (203, 92017), (551, 33901), (841, 22211), (1169, 15979), (3173, 5887), (3857, 4843)]