217020717

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 345384000

約数和(自身を除く): 128363283

約数列:

[1, 3, 9, 19, 29, 57, 87, 107, 171, 261, 321, 409, 551, 963, 1227, 1653, 2033, 3103, 3681, 4959, 6099, 7771, 9309, 11861, 18297, 23313, 27927, 35583, 43763, 58957, 69939, 106749, 131289, 176871, 225359, 393867, 530613, 676077, 831497, 1269127, 2028231, 2494491, 3807381, 7483473, 11422143, 24113413, 72340239, 217020717]

約数ペア:

[(1, 217020717), (3, 72340239), (9, 24113413), (19, 11422143), (29, 7483473), (57, 3807381), (87, 2494491), (107, 2028231), (171, 1269127), (261, 831497), (321, 676077), (409, 530613), (551, 393867), (963, 225359), (1227, 176871), (1653, 131289), (2033, 106749), (3103, 69939), (3681, 58957), (4959, 43763), (6099, 35583), (7771, 27927), (9309, 23313), (11861, 18297)]