21346545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2441}}^1$

素因数の和:2513

約数の個数: 32

約数和(自身を含む): 37977984

約数和(自身を除く): 16631439

約数列:

[1, 3, 5, 11, 15, 33, 53, 55, 159, 165, 265, 583, 795, 1749, 2441, 2915, 7323, 8745, 12205, 26851, 36615, 80553, 129373, 134255, 388119, 402765, 646865, 1423103, 1940595, 4269309, 7115515, 21346545]

約数ペア:

[(1, 21346545), (3, 7115515), (5, 4269309), (11, 1940595), (15, 1423103), (33, 646865), (53, 402765), (55, 388119), (159, 134255), (165, 129373), (265, 80553), (583, 36615), (795, 26851), (1749, 12205), (2441, 8745), (2915, 7323)]