1686321

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 3144960

約数和(自身を除く): 1458639

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 71, 87, 91, 117, 203, 213, 261, 273, 377, 497, 609, 639, 819, 923, 1131, 1491, 1827, 2059, 2639, 2769, 3393, 4473, 6177, 6461, 7917, 8307, 14413, 18531, 19383, 23751, 26767, 43239, 58149, 80301, 129717, 187369, 240903, 562107, 1686321]

約数ペア:

[(1, 1686321), (3, 562107), (7, 240903), (9, 187369), (13, 129717), (21, 80301), (29, 58149), (39, 43239), (63, 26767), (71, 23751), (87, 19383), (91, 18531), (117, 14413), (203, 8307), (213, 7917), (261, 6461), (273, 6177), (377, 4473), (497, 3393), (609, 2769), (639, 2639), (819, 2059), (923, 1827), (1131, 1491)]