205817823

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 334414080

約数和(自身を除く): 128596257

約数列:

[1, 3, 9, 19, 23, 43, 57, 69, 129, 171, 207, 387, 437, 817, 989, 1217, 1311, 2451, 2967, 3651, 3933, 7353, 8901, 10953, 18791, 23123, 27991, 52331, 56373, 69369, 83973, 156993, 169119, 208107, 251919, 470979, 531829, 994289, 1203613, 1595487, 2982867, 3610839, 4786461, 8948601, 10832517, 22868647, 68605941, 205817823]

約数ペア:

[(1, 205817823), (3, 68605941), (9, 22868647), (19, 10832517), (23, 8948601), (43, 4786461), (57, 3610839), (69, 2982867), (129, 1595487), (171, 1203613), (207, 994289), (387, 531829), (437, 470979), (817, 251919), (989, 208107), (1217, 169119), (1311, 156993), (2451, 83973), (2967, 69369), (3651, 56373), (3933, 52331), (7353, 27991), (8901, 23123), (10953, 18791)]