208545407

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1\times {\mathrm{1831}}^1$

素因数の和:2198

約数の個数: 16

約数和(自身を含む): 243758592

約数和(自身を除く): 35213185

約数列:

[1, 7, 53, 307, 371, 1831, 2149, 12817, 16271, 97043, 113897, 562117, 679301, 3934819, 29792201, 208545407]

約数ペア:

[(1, 208545407), (7, 29792201), (53, 3934819), (307, 679301), (371, 562117), (1831, 113897), (2149, 97043), (12817, 16271)]