21011190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:893

約数の個数: 64

約数和(自身を含む): 54107136

約数和(自身を除く): 33095946

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 823, 851, 1110, 1646, 1702, 2469, 2553, 4115, 4255, 4938, 5106, 8230, 8510, 12345, 12765, 18929, 24690, 25530, 30451, 37858, 56787, 60902, 91353, 94645, 113574, 152255, 182706, 189290, 283935, 304510, 456765, 567870, 700373, 913530, 1400746, 2101119, 3501865, 4202238, 7003730, 10505595, 21011190]

約数ペア:

[(1, 21011190), (2, 10505595), (3, 7003730), (5, 4202238), (6, 3501865), (10, 2101119), (15, 1400746), (23, 913530), (30, 700373), (37, 567870), (46, 456765), (69, 304510), (74, 283935), (111, 189290), (115, 182706), (138, 152255), (185, 113574), (222, 94645), (230, 91353), (345, 60902), (370, 56787), (555, 37858), (690, 30451), (823, 25530), (851, 24690), (1110, 18929), (1646, 12765), (1702, 12345), (2469, 8510), (2553, 8230), (4115, 5106), (4255, 4938)]