21292760

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14387}}^1$

素因数の和:14435

約数の個数: 32

約数和(自身を含む): 49206960

約数和(自身を除く): 27914200

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14387, 28774, 57548, 71935, 115096, 143870, 287740, 532319, 575480, 1064638, 2129276, 2661595, 4258552, 5323190, 10646380, 21292760]

約数ペア:

[(1, 21292760), (2, 10646380), (4, 5323190), (5, 4258552), (8, 2661595), (10, 2129276), (20, 1064638), (37, 575480), (40, 532319), (74, 287740), (148, 143870), (185, 115096), (296, 71935), (370, 57548), (740, 28774), (1480, 14387)]