20986111

素因数分解:

${\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 22550400

約数和(自身を除く): 1564289

約数列:

[1, 29, 47, 89, 173, 1363, 2581, 4183, 5017, 8131, 15397, 121307, 235799, 446513, 723659, 20986111]

約数ペア:

[(1, 20986111), (29, 723659), (47, 446513), (89, 235799), (173, 121307), (1363, 15397), (2581, 8131), (4183, 5017)]