396520231359

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{993785041}}^1$

素因数の和:993785070

約数の個数: 16

約数和(自身を含む): 636022426880

約数和(自身を除く): 239502195521

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 993785041, 2981355123, 6956495287, 18881915779, 20869485861, 56645747337, 132173410453, 396520231359]

約数ペア:

[(1, 396520231359), (3, 132173410453), (7, 56645747337), (19, 20869485861), (21, 18881915779), (57, 6956495287), (133, 2981355123), (399, 993785041)]