20793087

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{599}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 37440000

約数和(自身を除く): 16646913

約数列:

[1, 3, 7, 9, 19, 21, 29, 57, 63, 87, 133, 171, 203, 261, 399, 551, 599, 609, 1197, 1653, 1797, 1827, 3857, 4193, 4959, 5391, 11381, 11571, 12579, 17371, 34143, 34713, 37737, 52113, 79667, 102429, 121597, 156339, 239001, 330049, 364791, 717003, 990147, 1094373, 2310343, 2970441, 6931029, 20793087]

約数ペア:

[(1, 20793087), (3, 6931029), (7, 2970441), (9, 2310343), (19, 1094373), (21, 990147), (29, 717003), (57, 364791), (63, 330049), (87, 239001), (133, 156339), (171, 121597), (203, 102429), (261, 79667), (399, 52113), (551, 37737), (599, 34713), (609, 34143), (1197, 17371), (1653, 12579), (1797, 11571), (1827, 11381), (3857, 5391), (4193, 4959)]