20212665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{122501}}^1$

素因数の和:122520

約数の個数: 16

約数和(自身を含む): 35280576

約数和(自身を除く): 15067911

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 122501, 367503, 612505, 1347511, 1837515, 4042533, 6737555, 20212665]

約数ペア:

[(1, 20212665), (3, 6737555), (5, 4042533), (11, 1837515), (15, 1347511), (33, 612505), (55, 367503), (165, 122501)]