21034611

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 34690656

約数和(自身を除く): 13656045

約数列:

[1, 3, 9, 13, 37, 39, 43, 111, 113, 117, 129, 333, 339, 387, 481, 559, 1017, 1443, 1469, 1591, 1677, 4181, 4329, 4407, 4773, 4859, 5031, 12543, 13221, 14319, 14577, 20683, 37629, 43731, 54353, 62049, 63167, 163059, 179783, 186147, 189501, 489177, 539349, 568503, 1618047, 2337179, 7011537, 21034611]

約数ペア:

[(1, 21034611), (3, 7011537), (9, 2337179), (13, 1618047), (37, 568503), (39, 539349), (43, 489177), (111, 189501), (113, 186147), (117, 179783), (129, 163059), (333, 63167), (339, 62049), (387, 54353), (481, 43731), (559, 37629), (1017, 20683), (1443, 14577), (1469, 14319), (1591, 13221), (1677, 12543), (4181, 5031), (4329, 4859), (4407, 4773)]