20976389

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 24718848

約数和(自身を除く): 3742459

約数列:

[1, 7, 43, 227, 301, 307, 1589, 2149, 9761, 13201, 68327, 69689, 92407, 487823, 2996627, 20976389]

約数ペア:

[(1, 20976389), (7, 2996627), (43, 487823), (227, 92407), (301, 69689), (307, 68327), (1589, 13201), (2149, 9761)]