81281277

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 149205888

約数和(自身を除く): 67924611

約数列:

[1, 3, 7, 9, 11, 21, 33, 53, 63, 77, 99, 159, 231, 371, 477, 583, 693, 1113, 1749, 2213, 3339, 4081, 5247, 6639, 12243, 15491, 19917, 24343, 36729, 46473, 73029, 117289, 139419, 170401, 219087, 351867, 511203, 821023, 1055601, 1290179, 1533609, 2463069, 3870537, 7389207, 9031253, 11611611, 27093759, 81281277]

約数ペア:

[(1, 81281277), (3, 27093759), (7, 11611611), (9, 9031253), (11, 7389207), (21, 3870537), (33, 2463069), (53, 1533609), (63, 1290179), (77, 1055601), (99, 821023), (159, 511203), (231, 351867), (371, 219087), (477, 170401), (583, 139419), (693, 117289), (1113, 73029), (1749, 46473), (2213, 36729), (3339, 24343), (4081, 19917), (5247, 15491), (6639, 12243)]