21681162

素因数分解:

$2^1\times 3^3\times {\mathrm{331}}^1\times {\mathrm{1213}}^1$

素因数の和:1555

約数の個数: 32

約数和(自身を含む): 48365760

約数和(自身を除く): 26684598

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 331, 662, 993, 1213, 1986, 2426, 2979, 3639, 5958, 7278, 8937, 10917, 17874, 21834, 32751, 65502, 401503, 803006, 1204509, 2409018, 3613527, 7227054, 10840581, 21681162]

約数ペア:

[(1, 21681162), (2, 10840581), (3, 7227054), (6, 3613527), (9, 2409018), (18, 1204509), (27, 803006), (54, 401503), (331, 65502), (662, 32751), (993, 21834), (1213, 17874), (1986, 10917), (2426, 8937), (2979, 7278), (3639, 5958)]