20578424

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{367}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 39832320

約数和(自身を除く): 19253896

約数列:

[1, 2, 4, 8, 43, 86, 163, 172, 326, 344, 367, 652, 734, 1304, 1468, 2936, 7009, 14018, 15781, 28036, 31562, 56072, 59821, 63124, 119642, 126248, 239284, 478568, 2572303, 5144606, 10289212, 20578424]

約数ペア:

[(1, 20578424), (2, 10289212), (4, 5144606), (8, 2572303), (43, 478568), (86, 239284), (163, 126248), (172, 119642), (326, 63124), (344, 59821), (367, 56072), (652, 31562), (734, 28036), (1304, 15781), (1468, 14018), (2936, 7009)]