19995801

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13411}}^1$

素因数の和:13492

約数の個数: 16

約数和(自身を含む): 30901248

約数和(自身を除く): 10905447

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13411, 40233, 93877, 281631, 952181, 2856543, 6665267, 19995801]

約数ペア:

[(1, 19995801), (3, 6665267), (7, 2856543), (21, 952181), (71, 281631), (213, 93877), (497, 40233), (1491, 13411)]