2021978399

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{86561}}^1$

素因数の和:86686

約数の個数: 16

約数和(自身を含む): 2393266176

約数和(自身を除く): 371287777

約数列:

[1, 7, 47, 71, 329, 497, 3337, 23359, 86561, 605927, 4068367, 6145831, 28478569, 43020817, 288854057, 2021978399]

約数ペア:

[(1, 2021978399), (7, 288854057), (47, 43020817), (71, 28478569), (329, 6145831), (497, 4068367), (3337, 605927), (23359, 86561)]