20257862

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:835

約数の個数: 16

約数和(自身を含む): 30979584

約数和(自身を除く): 10721722

約数列:

[1, 2, 71, 142, 331, 431, 662, 862, 23501, 30601, 47002, 61202, 142661, 285322, 10128931, 20257862]

約数ペア:

[(1, 20257862), (2, 10128931), (71, 285322), (142, 142661), (331, 61202), (431, 47002), (662, 30601), (862, 23501)]