21016567

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 5110793

約数列:

[1, 11, 13, 47, 53, 59, 143, 517, 583, 611, 649, 689, 767, 2491, 2773, 3127, 6721, 7579, 8437, 27401, 30503, 32383, 34397, 36049, 40651, 146969, 356213, 396539, 447161, 1616659, 1910597, 21016567]

約数ペア:

[(1, 21016567), (11, 1910597), (13, 1616659), (47, 447161), (53, 396539), (59, 356213), (143, 146969), (517, 40651), (583, 36049), (611, 34397), (649, 32383), (689, 30503), (767, 27401), (2491, 8437), (2773, 7579), (3127, 6721)]