20688208

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8563}}^1$

素因数の和:8722

約数の個数: 20

約数和(自身を含む): 40353568

約数和(自身を除く): 19665360

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8563, 17126, 34252, 68504, 137008, 1293013, 2586026, 5172052, 10344104, 20688208]

約数ペア:

[(1, 20688208), (2, 10344104), (4, 5172052), (8, 2586026), (16, 1293013), (151, 137008), (302, 68504), (604, 34252), (1208, 17126), (2416, 8563)]