81490227

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9629}}^1$

素因数の和:9683

約数の個数: 32

約数和(自身を含む): 138055680

約数和(自身を除く): 56565453

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 8463, 9629, 28887, 67403, 125177, 202209, 298499, 375531, 876239, 895497, 2089493, 2628717, 3880487, 6268479, 11641461, 27163409, 81490227]

約数ペア:

[(1, 81490227), (3, 27163409), (7, 11641461), (13, 6268479), (21, 3880487), (31, 2628717), (39, 2089493), (91, 895497), (93, 876239), (217, 375531), (273, 298499), (403, 202209), (651, 125177), (1209, 67403), (2821, 28887), (8463, 9629)]