20321833

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1319}}^1$

素因数の和:1428

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 4008407

約数列:

[1, 7, 31, 71, 217, 497, 1319, 2201, 9233, 15407, 40889, 93649, 286223, 655543, 2903119, 20321833]

約数ペア:

[(1, 20321833), (7, 2903119), (31, 655543), (71, 286223), (217, 93649), (497, 40889), (1319, 15407), (2201, 9233)]