81507153

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9631}}^1$

素因数の和:9685

約数の個数: 32

約数和(自身を含む): 138084352

約数和(自身を除く): 56577199

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 8463, 9631, 28893, 67417, 125203, 202251, 298561, 375609, 876421, 895683, 2089927, 2629263, 3881293, 6269781, 11643879, 27169051, 81507153]

約数ペア:

[(1, 81507153), (3, 27169051), (7, 11643879), (13, 6269781), (21, 3881293), (31, 2629263), (39, 2089927), (91, 895683), (93, 876421), (217, 375609), (273, 298561), (403, 202251), (651, 125203), (1209, 67417), (2821, 28893), (8463, 9631)]