213886911

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{12227}}^1$

素因数の和:12268

約数の個数: 32

約数和(自身を含む): 352166400

約数和(自身を除く): 138279489

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 833, 1029, 2499, 5831, 12227, 17493, 36681, 85589, 207859, 256767, 599123, 623577, 1455013, 1797369, 4193861, 4365039, 10185091, 12581583, 30555273, 71295637, 213886911]

約数ペア:

[(1, 213886911), (3, 71295637), (7, 30555273), (17, 12581583), (21, 10185091), (49, 4365039), (51, 4193861), (119, 1797369), (147, 1455013), (343, 623577), (357, 599123), (833, 256767), (1029, 207859), (2499, 85589), (5831, 36681), (12227, 17493)]