20782840257

素因数分解:

$3^2\times {\mathrm{431}}^1\times {\mathrm{557}}^1\times {\mathrm{9619}}^1$

素因数の和:10613

約数の個数: 24

約数和(自身を含む): 30146463360

約数和(自身を除く): 9363623103

約数列:

[1, 3, 9, 431, 557, 1293, 1671, 3879, 5013, 9619, 28857, 86571, 240067, 720201, 2160603, 4145789, 5357783, 12437367, 16073349, 37312101, 48220047, 2309204473, 6927613419, 20782840257]

約数ペア:

[(1, 20782840257), (3, 6927613419), (9, 2309204473), (431, 48220047), (557, 37312101), (1293, 16073349), (1671, 12437367), (3879, 5357783), (5013, 4145789), (9619, 2160603), (28857, 720201), (86571, 240067)]