83591991

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 148674240

約数和(自身を除く): 65082249

約数列:

[1, 3, 7, 9, 21, 37, 47, 49, 63, 109, 111, 141, 147, 259, 327, 329, 333, 423, 441, 763, 777, 981, 987, 1739, 1813, 2289, 2303, 2331, 2961, 4033, 5123, 5217, 5341, 5439, 6867, 6909, 12099, 12173, 15369, 15651, 16023, 16317, 20727, 28231, 35861, 36297, 36519, 46107, 48069, 84693, 85211, 107583, 109557, 189551, 197617, 251027, 254079, 255633, 322749, 568653, 592851, 753081, 766899, 1326857, 1705959, 1778553, 2259243, 3980571, 9287999, 11941713, 27863997, 83591991]

約数ペア:

[(1, 83591991), (3, 27863997), (7, 11941713), (9, 9287999), (21, 3980571), (37, 2259243), (47, 1778553), (49, 1705959), (63, 1326857), (109, 766899), (111, 753081), (141, 592851), (147, 568653), (259, 322749), (327, 255633), (329, 254079), (333, 251027), (423, 197617), (441, 189551), (763, 109557), (777, 107583), (981, 85211), (987, 84693), (1739, 48069), (1813, 46107), (2289, 36519), (2303, 36297), (2331, 35861), (2961, 28231), (4033, 20727), (5123, 16317), (5217, 16023), (5341, 15651), (5439, 15369), (6867, 12173), (6909, 12099)]