81776247

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 141768576

約数和(自身を除く): 59992329

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 67, 69, 133, 147, 161, 201, 361, 399, 437, 469, 483, 931, 1083, 1127, 1273, 1311, 1407, 1541, 2527, 2793, 3059, 3283, 3381, 3819, 4623, 7581, 8303, 8911, 9177, 9849, 10787, 17689, 21413, 24187, 24909, 26733, 29279, 32361, 53067, 58121, 62377, 64239, 72561, 75509, 87837, 169309, 174363, 187131, 204953, 226527, 406847, 507927, 556301, 614859, 1185163, 1220541, 1434671, 1668903, 3555489, 3894107, 4304013, 11682321, 27258749, 81776247]

約数ペア:

[(1, 81776247), (3, 27258749), (7, 11682321), (19, 4304013), (21, 3894107), (23, 3555489), (49, 1668903), (57, 1434671), (67, 1220541), (69, 1185163), (133, 614859), (147, 556301), (161, 507927), (201, 406847), (361, 226527), (399, 204953), (437, 187131), (469, 174363), (483, 169309), (931, 87837), (1083, 75509), (1127, 72561), (1273, 64239), (1311, 62377), (1407, 58121), (1541, 53067), (2527, 32361), (2793, 29279), (3059, 26733), (3283, 24909), (3381, 24187), (3819, 21413), (4623, 17689), (7581, 10787), (8303, 9849), (8911, 9177)]