20508334

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 41564160

約数和(自身を除く): 21055826

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 43, 77, 86, 133, 154, 163, 209, 266, 301, 326, 418, 473, 602, 817, 946, 1141, 1463, 1634, 1793, 2282, 2926, 3097, 3311, 3586, 5719, 6194, 6622, 7009, 8987, 11438, 12551, 14018, 17974, 21679, 25102, 34067, 43358, 49063, 62909, 68134, 77099, 98126, 125818, 133171, 154198, 238469, 266342, 476938, 539693, 932197, 1079386, 1464881, 1864394, 2929762, 10254167, 20508334]

約数ペア:

[(1, 20508334), (2, 10254167), (7, 2929762), (11, 1864394), (14, 1464881), (19, 1079386), (22, 932197), (38, 539693), (43, 476938), (77, 266342), (86, 238469), (133, 154198), (154, 133171), (163, 125818), (209, 98126), (266, 77099), (301, 68134), (326, 62909), (418, 49063), (473, 43358), (602, 34067), (817, 25102), (946, 21679), (1141, 17974), (1463, 14018), (1634, 12551), (1793, 11438), (2282, 8987), (2926, 7009), (3097, 6622), (3311, 6194), (3586, 5719)]