20974970

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{48779}}^1$

素因数の和:48829

約数の個数: 16

約数和(自身を含む): 38633760

約数和(自身を除く): 17658790

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 48779, 97558, 243895, 487790, 2097497, 4194994, 10487485, 20974970]

約数ペア:

[(1, 20974970), (2, 10487485), (5, 4194994), (10, 2097497), (43, 487790), (86, 243895), (215, 97558), (430, 48779)]