18723921

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{797}}^1$

素因数の和:1032

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 7016367

約数列:

[1, 3, 41, 123, 191, 573, 797, 2391, 7831, 23493, 32677, 98031, 152227, 456681, 6241307, 18723921]

約数ペア:

[(1, 18723921), (3, 6241307), (41, 456681), (123, 152227), (191, 98031), (573, 32677), (797, 23493), (2391, 7831)]