2019963987

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{71}}^2\times {\mathrm{97}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 3283036848

約数和(自身を除く): 1263072861

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 97, 153, 213, 243, 291, 459, 639, 873, 1207, 1377, 1649, 1917, 2619, 3621, 4131, 4947, 5041, 5751, 6887, 7857, 10863, 14841, 15123, 17253, 20661, 23571, 32589, 44523, 45369, 61983, 85697, 97767, 117079, 133569, 136107, 185949, 257091, 293301, 351237, 400707, 408321, 488977, 557847, 771273, 1053711, 1224963, 1466931, 1673541, 2313819, 3161133, 4400793, 6941457, 8312609, 9483399, 13202379, 20824371, 24937827, 28450197, 39607137, 74813481, 118821411, 224440443, 673321329, 2019963987]

約数ペア:

[(1, 2019963987), (3, 673321329), (9, 224440443), (17, 118821411), (27, 74813481), (51, 39607137), (71, 28450197), (81, 24937827), (97, 20824371), (153, 13202379), (213, 9483399), (243, 8312609), (291, 6941457), (459, 4400793), (639, 3161133), (873, 2313819), (1207, 1673541), (1377, 1466931), (1649, 1224963), (1917, 1053711), (2619, 771273), (3621, 557847), (4131, 488977), (4947, 408321), (5041, 400707), (5751, 351237), (6887, 293301), (7857, 257091), (10863, 185949), (14841, 136107), (15123, 133569), (17253, 117079), (20661, 97767), (23571, 85697), (32589, 61983), (44523, 45369)]