31157217

素因数分解:

$3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1409}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 57482880

約数和(自身を除く): 26325663

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 567, 819, 1053, 1409, 1701, 2457, 3159, 4227, 7371, 9863, 12681, 18317, 22113, 29589, 38043, 54951, 88767, 114129, 128219, 164853, 266301, 342387, 384657, 494559, 798903, 1153971, 1483677, 2396709, 3461913, 4451031, 10385739, 31157217]

約数ペア:

[(1, 31157217), (3, 10385739), (7, 4451031), (9, 3461913), (13, 2396709), (21, 1483677), (27, 1153971), (39, 798903), (63, 494559), (81, 384657), (91, 342387), (117, 266301), (189, 164853), (243, 128219), (273, 114129), (351, 88767), (567, 54951), (819, 38043), (1053, 29589), (1409, 22113), (1701, 18317), (2457, 12681), (3159, 9863), (4227, 7371)]