21524805

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 19843515

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 83, 85, 113, 135, 153, 249, 255, 339, 415, 459, 565, 747, 765, 1017, 1245, 1411, 1695, 1921, 2241, 2295, 3051, 3735, 4233, 5085, 5763, 7055, 9379, 9605, 11205, 12699, 15255, 17289, 21165, 28137, 28815, 38097, 46895, 51867, 63495, 84411, 86445, 140685, 159443, 190485, 253233, 259335, 422055, 478329, 797215, 1266165, 1434987, 2391645, 4304961, 7174935, 21524805]

約数ペア:

[(1, 21524805), (3, 7174935), (5, 4304961), (9, 2391645), (15, 1434987), (17, 1266165), (27, 797215), (45, 478329), (51, 422055), (83, 259335), (85, 253233), (113, 190485), (135, 159443), (153, 140685), (249, 86445), (255, 84411), (339, 63495), (415, 51867), (459, 46895), (565, 38097), (747, 28815), (765, 28137), (1017, 21165), (1245, 17289), (1411, 15255), (1695, 12699), (1921, 11205), (2241, 9605), (2295, 9379), (3051, 7055), (3735, 5763), (4233, 5085)]