215966522

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^2\times {\mathrm{691}}^1$

素因数の和:866

約数の個数: 24

約数和(自身を含む): 339666816

約数和(自身を除く): 123700294

約数列:

[1, 2, 31, 62, 71, 142, 691, 1382, 2201, 4402, 5041, 10082, 21421, 42842, 49061, 98122, 156271, 312542, 1520891, 3041782, 3483331, 6966662, 107983261, 215966522]

約数ペア:

[(1, 215966522), (2, 107983261), (31, 6966662), (62, 3483331), (71, 3041782), (142, 1520891), (691, 312542), (1382, 156271), (2201, 98122), (4402, 49061), (5041, 42842), (10082, 21421)]