19640836

素因数分解:

$2^2\times {\mathrm{659}}^1\times {\mathrm{7451}}^1$

素因数の和:8114

約数の個数: 12

約数和(自身を含む): 34428240

約数和(自身を除く): 14787404

約数列:

[1, 2, 4, 659, 1318, 2636, 7451, 14902, 29804, 4910209, 9820418, 19640836]

約数ペア:

[(1, 19640836), (2, 9820418), (4, 4910209), (659, 29804), (1318, 14902), (2636, 7451)]