72971457

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 113678208

約数和(自身を除く): 40706751

約数列:

[1, 3, 13, 19, 39, 57, 71, 73, 213, 219, 247, 361, 741, 923, 949, 1083, 1349, 1387, 2769, 2847, 4047, 4161, 4693, 5183, 14079, 15549, 17537, 18031, 25631, 26353, 52611, 54093, 67379, 76893, 79059, 98477, 202137, 295431, 333203, 342589, 999609, 1027767, 1280201, 1871063, 3840603, 5613189, 24323819, 72971457]

約数ペア:

[(1, 72971457), (3, 24323819), (13, 5613189), (19, 3840603), (39, 1871063), (57, 1280201), (71, 1027767), (73, 999609), (213, 342589), (219, 333203), (247, 295431), (361, 202137), (741, 98477), (923, 79059), (949, 76893), (1083, 67379), (1349, 54093), (1387, 52611), (2769, 26353), (2847, 25631), (4047, 18031), (4161, 17537), (4693, 15549), (5183, 14079)]