28056273

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 18893487

約数列:

[1, 3, 7, 17, 21, 49, 51, 103, 109, 119, 147, 309, 327, 357, 721, 763, 833, 1751, 1853, 2163, 2289, 2499, 5047, 5253, 5341, 5559, 11227, 12257, 12971, 15141, 16023, 33681, 36771, 38913, 78589, 85799, 90797, 190859, 235767, 257397, 272391, 550123, 572577, 1336013, 1650369, 4008039, 9352091, 28056273]

約数ペア:

[(1, 28056273), (3, 9352091), (7, 4008039), (17, 1650369), (21, 1336013), (49, 572577), (51, 550123), (103, 272391), (109, 257397), (119, 235767), (147, 190859), (309, 90797), (327, 85799), (357, 78589), (721, 38913), (763, 36771), (833, 33681), (1751, 16023), (1853, 15141), (2163, 12971), (2289, 12257), (2499, 11227), (5047, 5559), (5253, 5341)]