81187197

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{3583}}^1$

素因数の和:3689

約数の個数: 32

約数和(自身を含む): 134873088

約数和(自身を除く): 53685891

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 1079, 1743, 3237, 3583, 7553, 10749, 22659, 25081, 46579, 75243, 139737, 297389, 326053, 892167, 978159, 2081723, 3866057, 6245169, 11598171, 27062399, 81187197]

約数ペア:

[(1, 81187197), (3, 27062399), (7, 11598171), (13, 6245169), (21, 3866057), (39, 2081723), (83, 978159), (91, 892167), (249, 326053), (273, 297389), (581, 139737), (1079, 75243), (1743, 46579), (3237, 25081), (3583, 22659), (7553, 10749)]