21333730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193943}}^1$

素因数の和:193961

約数の個数: 16

約数和(自身を含む): 41891904

約数和(自身を除く): 20558174

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193943, 387886, 969715, 1939430, 2133373, 4266746, 10666865, 21333730]

約数ペア:

[(1, 21333730), (2, 10666865), (5, 4266746), (10, 2133373), (11, 1939430), (22, 969715), (55, 387886), (110, 193943)]