19959331

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 23989248

約数和(自身を除く): 4029917

約数列:

[1, 7, 23, 151, 161, 821, 1057, 3473, 5747, 18883, 24311, 123971, 132181, 867797, 2851333, 19959331]

約数ペア:

[(1, 19959331), (7, 2851333), (23, 867797), (151, 132181), (161, 123971), (821, 24311), (1057, 18883), (3473, 5747)]