639034

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:981

約数の個数: 16

約数和(自身を含む): 1080576

約数和(自身を除く): 441542

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 937, 1874, 10307, 20614, 29047, 58094, 319517, 639034]

約数ペア:

[(1, 639034), (2, 319517), (11, 58094), (22, 29047), (31, 20614), (62, 10307), (341, 1874), (682, 937)]