21445730

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{22109}}^1$

素因数の和:22213

約数の個数: 16

約数和(自身を含む): 39002040

約数和(自身を除く): 17556310

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 22109, 44218, 110545, 221090, 2144573, 4289146, 10722865, 21445730]

約数ペア:

[(1, 21445730), (2, 10722865), (5, 4289146), (10, 2144573), (97, 221090), (194, 110545), (485, 44218), (970, 22109)]