2489641

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 3283200

約数和(自身を除く): 793559

約数列:

[1, 7, 11, 31, 49, 77, 149, 217, 341, 539, 1043, 1519, 1639, 2387, 4619, 7301, 11473, 16709, 32333, 50809, 80311, 226331, 355663, 2489641]

約数ペア:

[(1, 2489641), (7, 355663), (11, 226331), (31, 80311), (49, 50809), (77, 32333), (149, 16709), (217, 11473), (341, 7301), (539, 4619), (1043, 2387), (1519, 1639)]