397381929

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{239531}}^1$

素因数の和:239620

約数の個数: 16

約数和(自身を含む): 613201920

約数和(自身を除く): 215819991

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 239531, 718593, 1676717, 5030151, 18922949, 56768847, 132460643, 397381929]

約数ペア:

[(1, 397381929), (3, 132460643), (7, 56768847), (21, 18922949), (79, 5030151), (237, 1676717), (553, 718593), (1659, 239531)]