19723455

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10193}}^1$

素因数の和:10247

約数の個数: 24

約数和(自身を含む): 34985808

約数和(自身を除く): 15262353

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10193, 30579, 50965, 91737, 152895, 438299, 458685, 1314897, 2191495, 3944691, 6574485, 19723455]

約数ペア:

[(1, 19723455), (3, 6574485), (5, 3944691), (9, 2191495), (15, 1314897), (43, 458685), (45, 438299), (129, 152895), (215, 91737), (387, 50965), (645, 30579), (1935, 10193)]