19554039

素因数分解:

$3^2\times {\mathrm{71}}^2\times {\mathrm{431}}^1$

素因数の和:579

約数の個数: 18

約数和(自身を含む): 28714608

約数和(自身を除く): 9160569

約数列:

[1, 3, 9, 71, 213, 431, 639, 1293, 3879, 5041, 15123, 30601, 45369, 91803, 275409, 2172671, 6518013, 19554039]

約数ペア:

[(1, 19554039), (3, 6518013), (9, 2172671), (71, 275409), (213, 91803), (431, 45369), (639, 30601), (1293, 15123), (3879, 5041)]