21390798

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 50948352

約数和(自身を除く): 29557554

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 107, 143, 214, 233, 286, 321, 429, 466, 642, 699, 858, 1177, 1391, 1398, 2354, 2563, 2782, 3029, 3531, 4173, 5126, 6058, 7062, 7689, 8346, 9087, 15301, 15378, 18174, 24931, 30602, 33319, 45903, 49862, 66638, 74793, 91806, 99957, 149586, 199914, 274241, 324103, 548482, 648206, 822723, 972309, 1645446, 1944618, 3565133, 7130266, 10695399, 21390798]

約数ペア:

[(1, 21390798), (2, 10695399), (3, 7130266), (6, 3565133), (11, 1944618), (13, 1645446), (22, 972309), (26, 822723), (33, 648206), (39, 548482), (66, 324103), (78, 274241), (107, 199914), (143, 149586), (214, 99957), (233, 91806), (286, 74793), (321, 66638), (429, 49862), (466, 45903), (642, 33319), (699, 30602), (858, 24931), (1177, 18174), (1391, 15378), (1398, 15301), (2354, 9087), (2563, 8346), (2782, 7689), (3029, 7062), (3531, 6058), (4173, 5126)]