20771127

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^2$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 35693280

約数和(自身を除く): 14922153

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 59, 117, 153, 177, 221, 351, 459, 531, 663, 767, 1003, 1593, 1989, 2301, 3009, 3481, 5967, 6903, 9027, 10443, 13039, 20709, 27081, 31329, 39117, 45253, 59177, 93987, 117351, 135759, 177531, 352053, 407277, 532593, 769301, 1221831, 1597779, 2307903, 6923709, 20771127]

約数ペア:

[(1, 20771127), (3, 6923709), (9, 2307903), (13, 1597779), (17, 1221831), (27, 769301), (39, 532593), (51, 407277), (59, 352053), (117, 177531), (153, 135759), (177, 117351), (221, 93987), (351, 59177), (459, 45253), (531, 39117), (663, 31329), (767, 27081), (1003, 20709), (1593, 13039), (1989, 10443), (2301, 9027), (3009, 6903), (3481, 5967)]