20352717

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{683}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 37559808

約数和(自身を除く): 17207091

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 683, 693, 903, 1419, 2049, 2709, 3311, 4257, 4781, 6147, 7513, 9933, 14343, 22539, 29369, 29799, 43029, 52591, 67617, 88107, 157773, 205583, 264321, 323059, 473319, 616749, 969177, 1850247, 2261413, 2907531, 6784239, 20352717]

約数ペア:

[(1, 20352717), (3, 6784239), (7, 2907531), (9, 2261413), (11, 1850247), (21, 969177), (33, 616749), (43, 473319), (63, 323059), (77, 264321), (99, 205583), (129, 157773), (231, 88107), (301, 67617), (387, 52591), (473, 43029), (683, 29799), (693, 29369), (903, 22539), (1419, 14343), (2049, 9933), (2709, 7513), (3311, 6147), (4257, 4781)]