1400049

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 2351232

約数和(自身を除く): 951183

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 313, 497, 639, 939, 1491, 2191, 2817, 4473, 6573, 19719, 22223, 66669, 155561, 200007, 466683, 1400049]

約数ペア:

[(1, 1400049), (3, 466683), (7, 200007), (9, 155561), (21, 66669), (63, 22223), (71, 19719), (213, 6573), (313, 4473), (497, 2817), (639, 2191), (939, 1491)]