20897418

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{47711}}^1$

素因数の和:47789

約数の個数: 16

約数和(自身を含む): 42368256

約数和(自身を除く): 21470838

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 47711, 95422, 143133, 286266, 3482903, 6965806, 10448709, 20897418]

約数ペア:

[(1, 20897418), (2, 10448709), (3, 6965806), (6, 3482903), (73, 286266), (146, 143133), (219, 95422), (438, 47711)]