21706605

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13037}}^1$

素因数の和:13085

約数の個数: 24

約数和(自身を含む): 38644632

約数和(自身を除く): 16938027

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 13037, 39111, 65185, 117333, 195555, 482369, 586665, 1447107, 2411845, 4341321, 7235535, 21706605]

約数ペア:

[(1, 21706605), (3, 7235535), (5, 4341321), (9, 2411845), (15, 1447107), (37, 586665), (45, 482369), (111, 195555), (185, 117333), (333, 65185), (555, 39111), (1665, 13037)]