20914859

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:626

約数の個数: 16

約数和(自身を含む): 24631296

約数和(自身を除く): 3716437

約数列:

[1, 7, 47, 151, 329, 421, 1057, 2947, 7097, 19787, 49679, 63571, 138509, 444997, 2987837, 20914859]

約数ペア:

[(1, 20914859), (7, 2987837), (47, 444997), (151, 138509), (329, 63571), (421, 49679), (1057, 19787), (2947, 7097)]