207400959

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{1009}}^1$

素因数の和:1372

約数の個数: 32

約数和(自身を含む): 321907200

約数和(自身を除く): 114506241

約数列:

[1, 3, 9, 23, 27, 69, 207, 331, 621, 993, 1009, 2979, 3027, 7613, 8937, 9081, 22839, 23207, 27243, 68517, 69621, 205551, 208863, 333979, 626589, 1001937, 3005811, 7681517, 9017433, 23044551, 69133653, 207400959]

約数ペア:

[(1, 207400959), (3, 69133653), (9, 23044551), (23, 9017433), (27, 7681517), (69, 3005811), (207, 1001937), (331, 626589), (621, 333979), (993, 208863), (1009, 205551), (2979, 69621), (3027, 68517), (7613, 27243), (8937, 23207), (9081, 22839)]