21562760

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{769}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 48648600

約数和(自身を除く): 27085840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 769, 1402, 1538, 2804, 3076, 3505, 3845, 5608, 6152, 7010, 7690, 14020, 15380, 28040, 30760, 539069, 1078138, 2156276, 2695345, 4312552, 5390690, 10781380, 21562760]

約数ペア:

[(1, 21562760), (2, 10781380), (4, 5390690), (5, 4312552), (8, 2695345), (10, 2156276), (20, 1078138), (40, 539069), (701, 30760), (769, 28040), (1402, 15380), (1538, 14020), (2804, 7690), (3076, 7010), (3505, 6152), (3845, 5608)]