20008989

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2258

約数の個数: 48

約数和(自身を含む): 38822784

約数和(自身を除く): 18813795

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2221, 3003, 6663, 9009, 15547, 19989, 24431, 28873, 46641, 73293, 86619, 139923, 171017, 202111, 219879, 259857, 317603, 513051, 606333, 952809, 1539153, 1818999, 2223221, 2858427, 6669663, 20008989]

約数ペア:

[(1, 20008989), (3, 6669663), (7, 2858427), (9, 2223221), (11, 1818999), (13, 1539153), (21, 952809), (33, 606333), (39, 513051), (63, 317603), (77, 259857), (91, 219879), (99, 202111), (117, 171017), (143, 139923), (231, 86619), (273, 73293), (429, 46641), (693, 28873), (819, 24431), (1001, 19989), (1287, 15547), (2221, 9009), (3003, 6663)]