81177369

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 137204928

約数和(自身を除く): 56027559

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 107, 147, 273, 321, 397, 637, 749, 1191, 1391, 1911, 2247, 2779, 4173, 5161, 5243, 8337, 9737, 15483, 15729, 19453, 29211, 36127, 42479, 58359, 68159, 108381, 127437, 204477, 252889, 297353, 552227, 758667, 892059, 1656681, 2081471, 3865589, 6244413, 11596767, 27059123, 81177369]

約数ペア:

[(1, 81177369), (3, 27059123), (7, 11596767), (13, 6244413), (21, 3865589), (39, 2081471), (49, 1656681), (91, 892059), (107, 758667), (147, 552227), (273, 297353), (321, 252889), (397, 204477), (637, 127437), (749, 108381), (1191, 68159), (1391, 58359), (1911, 42479), (2247, 36127), (2779, 29211), (4173, 19453), (5161, 15729), (5243, 15483), (8337, 9737)]