21458866

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 18760334

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 121, 143, 209, 242, 247, 286, 359, 418, 494, 718, 1573, 2299, 2717, 3146, 3949, 4598, 4667, 5434, 6821, 7898, 9334, 13642, 29887, 43439, 51337, 59774, 75031, 86878, 88673, 102674, 150062, 177346, 564707, 825341, 975403, 1129414, 1650682, 1950806, 10729433, 21458866]

約数ペア:

[(1, 21458866), (2, 10729433), (11, 1950806), (13, 1650682), (19, 1129414), (22, 975403), (26, 825341), (38, 564707), (121, 177346), (143, 150062), (209, 102674), (242, 88673), (247, 86878), (286, 75031), (359, 59774), (418, 51337), (494, 43439), (718, 29887), (1573, 13642), (2299, 9334), (2717, 7898), (3146, 6821), (3949, 5434), (4598, 4667)]