81659331

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 134840160

約数和(自身を除く): 53180829

約数列:

[1, 3, 9, 13, 29, 39, 41, 87, 117, 123, 261, 369, 377, 533, 587, 1131, 1189, 1599, 1761, 3393, 3567, 4797, 5283, 7631, 10701, 15457, 17023, 22893, 24067, 46371, 51069, 68679, 72201, 139113, 153207, 216603, 221299, 312871, 663897, 697943, 938613, 1991691, 2093829, 2815839, 6281487, 9073259, 27219777, 81659331]

約数ペア:

[(1, 81659331), (3, 27219777), (9, 9073259), (13, 6281487), (29, 2815839), (39, 2093829), (41, 1991691), (87, 938613), (117, 697943), (123, 663897), (261, 312871), (369, 221299), (377, 216603), (533, 153207), (587, 139113), (1131, 72201), (1189, 68679), (1599, 51069), (1761, 46371), (3393, 24067), (3567, 22893), (4797, 17023), (5283, 15457), (7631, 10701)]