21359745

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43151}}^1$

素因数の和:43173

約数の個数: 24

約数和(自身を含む): 40390272

約数和(自身を除く): 19030527

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43151, 129453, 215755, 388359, 474661, 647265, 1423983, 1941795, 2373305, 4271949, 7119915, 21359745]

約数ペア:

[(1, 21359745), (3, 7119915), (5, 4271949), (9, 2373305), (11, 1941795), (15, 1423983), (33, 647265), (45, 474661), (55, 388359), (99, 215755), (165, 129453), (495, 43151)]