19491356

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{54751}}^1$

素因数の和:54844

約数の個数: 12

約数和(自身を含む): 34493760

約数和(自身を除く): 15002404

約数列:

[1, 2, 4, 89, 178, 356, 54751, 109502, 219004, 4872839, 9745678, 19491356]

約数ペア:

[(1, 19491356), (2, 9745678), (4, 4872839), (89, 219004), (178, 109502), (356, 54751)]