21754520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14699}}^1$

素因数の和:14747

約数の個数: 32

約数和(自身を含む): 50274000

約数和(自身を除く): 28519480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14699, 29398, 58796, 73495, 117592, 146990, 293980, 543863, 587960, 1087726, 2175452, 2719315, 4350904, 5438630, 10877260, 21754520]

約数ペア:

[(1, 21754520), (2, 10877260), (4, 5438630), (5, 4350904), (8, 2719315), (10, 2175452), (20, 1087726), (37, 587960), (40, 543863), (74, 293980), (148, 146990), (185, 117592), (296, 73495), (370, 58796), (740, 29398), (1480, 14699)]