19698393

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 34013952

約数和(自身を除く): 14315559

約数列:

[1, 3, 11, 13, 17, 33, 37, 39, 51, 73, 111, 143, 187, 219, 221, 407, 429, 481, 561, 629, 663, 803, 949, 1221, 1241, 1443, 1887, 2409, 2431, 2701, 2847, 3723, 5291, 6919, 7293, 8103, 8177, 10439, 13651, 15873, 16133, 20757, 24531, 29711, 31317, 35113, 40953, 45917, 48399, 89133, 89947, 105339, 137751, 177463, 269841, 386243, 505087, 532389, 596921, 1158729, 1515261, 1790763, 6566131, 19698393]

約数ペア:

[(1, 19698393), (3, 6566131), (11, 1790763), (13, 1515261), (17, 1158729), (33, 596921), (37, 532389), (39, 505087), (51, 386243), (73, 269841), (111, 177463), (143, 137751), (187, 105339), (219, 89947), (221, 89133), (407, 48399), (429, 45917), (481, 40953), (561, 35113), (629, 31317), (663, 29711), (803, 24531), (949, 20757), (1221, 16133), (1241, 15873), (1443, 13651), (1887, 10439), (2409, 8177), (2431, 8103), (2701, 7293), (2847, 6919), (3723, 5291)]