388243009

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 493758720

約数和(自身を除く): 105515711

約数列:

[1, 7, 11, 77, 89, 181, 313, 623, 979, 1267, 1991, 2191, 3443, 6853, 13937, 16109, 24101, 27857, 56653, 112763, 177199, 194999, 306427, 396571, 623183, 1240393, 2144989, 4362281, 5042117, 35294819, 55463287, 388243009]

約数ペア:

[(1, 388243009), (7, 55463287), (11, 35294819), (77, 5042117), (89, 4362281), (181, 2144989), (313, 1240393), (623, 623183), (979, 396571), (1267, 306427), (1991, 194999), (2191, 177199), (3443, 112763), (6853, 56653), (13937, 27857), (16109, 24101)]