21628558

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 38278656

約数和(自身を除く): 16650098

約数列:

[1, 2, 7, 14, 53, 103, 106, 206, 283, 371, 566, 721, 742, 1442, 1981, 3962, 5459, 10918, 14999, 29149, 29998, 38213, 58298, 76426, 104993, 204043, 209986, 408086, 1544897, 3089794, 10814279, 21628558]

約数ペア:

[(1, 21628558), (2, 10814279), (7, 3089794), (14, 1544897), (53, 408086), (103, 209986), (106, 204043), (206, 104993), (283, 76426), (371, 58298), (566, 38213), (721, 29998), (742, 29149), (1442, 14999), (1981, 10918), (3962, 5459)]