207985077

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{907}}^1$

素因数の和:1087

約数の個数: 40

約数和(自身を含む): 329604000

約数和(自身を除く): 121618923

約数列:

[1, 3, 9, 19, 27, 57, 81, 149, 171, 447, 513, 907, 1341, 1539, 2721, 2831, 4023, 8163, 8493, 12069, 17233, 24489, 25479, 51699, 73467, 76437, 135143, 155097, 229311, 405429, 465291, 1216287, 1395873, 2567717, 3648861, 7703151, 10946583, 23109453, 69328359, 207985077]

約数ペア:

[(1, 207985077), (3, 69328359), (9, 23109453), (19, 10946583), (27, 7703151), (57, 3648861), (81, 2567717), (149, 1395873), (171, 1216287), (447, 465291), (513, 405429), (907, 229311), (1341, 155097), (1539, 135143), (2721, 76437), (2831, 73467), (4023, 51699), (8163, 25479), (8493, 24489), (12069, 17233)]