18784398479

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{319729}}^1$

素因数の和:319863

約数の個数: 24

約数和(自身を含む): 24056485200

約数和(自身を除く): 5272086721

約数列:

[1, 7, 11, 49, 77, 109, 539, 763, 1199, 5341, 8393, 58751, 319729, 2238103, 3517019, 15666721, 24619133, 34850461, 172333931, 243953227, 383355071, 1707672589, 2683485497, 18784398479]

約数ペア:

[(1, 18784398479), (7, 2683485497), (11, 1707672589), (49, 383355071), (77, 243953227), (109, 172333931), (539, 34850461), (763, 24619133), (1199, 15666721), (5341, 3517019), (8393, 2238103), (58751, 319729)]