21838355

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 32997888

約数和(自身を除く): 11159533

約数列:

[1, 5, 7, 11, 35, 55, 77, 131, 385, 433, 655, 917, 1441, 2165, 3031, 4585, 4763, 7205, 10087, 15155, 23815, 33341, 50435, 56723, 166705, 283615, 397061, 623953, 1985305, 3119765, 4367671, 21838355]

約数ペア:

[(1, 21838355), (5, 4367671), (7, 3119765), (11, 1985305), (35, 623953), (55, 397061), (77, 283615), (131, 166705), (385, 56723), (433, 50435), (655, 33341), (917, 23815), (1441, 15155), (2165, 10087), (3031, 7205), (4585, 4763)]