20649782

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4691}}^1$

素因数の和:4795

約数の個数: 16

約数和(自身を含む): 32431104

約数和(自身を除く): 11781322

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4691, 9382, 145421, 290842, 333061, 666122, 10324891, 20649782]

約数ペア:

[(1, 20649782), (2, 10324891), (31, 666122), (62, 333061), (71, 290842), (142, 145421), (2201, 9382), (4402, 4691)]