21877471

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1097}}^1$

素因数の和:1159

約数の個数: 24

約数和(自身を含む): 28539216

約数和(自身を除く): 6661745

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1097, 1813, 2849, 7679, 12067, 19943, 40589, 53753, 84469, 284123, 446479, 591283, 1988861, 3125353, 21877471]

約数ペア:

[(1, 21877471), (7, 3125353), (11, 1988861), (37, 591283), (49, 446479), (77, 284123), (259, 84469), (407, 53753), (539, 40589), (1097, 19943), (1813, 12067), (2849, 7679)]