21535480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14551}}^1$

素因数の和:14599

約数の個数: 32

約数和(自身を含む): 49767840

約数和(自身を除く): 28232360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14551, 29102, 58204, 72755, 116408, 145510, 291020, 538387, 582040, 1076774, 2153548, 2691935, 4307096, 5383870, 10767740, 21535480]

約数ペア:

[(1, 21535480), (2, 10767740), (4, 5383870), (5, 4307096), (8, 2691935), (10, 2153548), (20, 1076774), (37, 582040), (40, 538387), (74, 291020), (148, 145510), (185, 116408), (296, 72755), (370, 58204), (740, 29102), (1480, 14551)]