21708496

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{2719}}^1$

素因数の和:3226

約数の個数: 20

約数和(自身を含む): 42160000

約数和(自身を除く): 20451504

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 2719, 3992, 5438, 7984, 10876, 21752, 43504, 1356781, 2713562, 5427124, 10854248, 21708496]

約数ペア:

[(1, 21708496), (2, 10854248), (4, 5427124), (8, 2713562), (16, 1356781), (499, 43504), (998, 21752), (1996, 10876), (2719, 7984), (3992, 5438)]