211368531

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{599}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 335980800

約数和(自身を除く): 124612269

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 289, 407, 561, 599, 629, 867, 1221, 1797, 1887, 3179, 6589, 6919, 9537, 10183, 10693, 19767, 20757, 22163, 30549, 32079, 66489, 112013, 117623, 173111, 243793, 336039, 352869, 376771, 519333, 731379, 1130313, 1904221, 4144481, 5712663, 6405107, 12433443, 19215321, 70456177, 211368531]

約数ペア:

[(1, 211368531), (3, 70456177), (11, 19215321), (17, 12433443), (33, 6405107), (37, 5712663), (51, 4144481), (111, 1904221), (187, 1130313), (289, 731379), (407, 519333), (561, 376771), (599, 352869), (629, 336039), (867, 243793), (1221, 173111), (1797, 117623), (1887, 112013), (3179, 66489), (6589, 32079), (6919, 30549), (9537, 22163), (10183, 20757), (10693, 19767)]