554535891

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 1010593584

約数和(自身を除く): 456057693

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 197, 273, 441, 491, 591, 637, 819, 1379, 1473, 1773, 1911, 2561, 3437, 4137, 4419, 5733, 6383, 7683, 9653, 10311, 12411, 17927, 19149, 23049, 24059, 28959, 30933, 44681, 53781, 57447, 72177, 86877, 96727, 125489, 134043, 161343, 216531, 290181, 312767, 376467, 402129, 677089, 870543, 938301, 1129401, 1257451, 2031267, 2814903, 3772353, 4739623, 6093801, 8802157, 11317059, 14218869, 26406471, 42656607, 61615099, 79219413, 184845297, 554535891]

約数ペア:

[(1, 554535891), (3, 184845297), (7, 79219413), (9, 61615099), (13, 42656607), (21, 26406471), (39, 14218869), (49, 11317059), (63, 8802157), (91, 6093801), (117, 4739623), (147, 3772353), (197, 2814903), (273, 2031267), (441, 1257451), (491, 1129401), (591, 938301), (637, 870543), (819, 677089), (1379, 402129), (1473, 376467), (1773, 312767), (1911, 290181), (2561, 216531), (3437, 161343), (4137, 134043), (4419, 125489), (5733, 96727), (6383, 86877), (7683, 72177), (9653, 57447), (10311, 53781), (12411, 44681), (17927, 30933), (19149, 28959), (23049, 24059)]