21050648

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37061}}^1$

素因数の和:37138

約数の個数: 16

約数和(自身を含む): 40026960

約数和(自身を除く): 18976312

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37061, 74122, 148244, 296488, 2631331, 5262662, 10525324, 21050648]

約数ペア:

[(1, 21050648), (2, 10525324), (4, 5262662), (8, 2631331), (71, 296488), (142, 148244), (284, 74122), (568, 37061)]