19653275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 26074224

約数和(自身を除く): 6420949

約数列:

[1, 5, 17, 25, 85, 131, 353, 425, 655, 1765, 2227, 3275, 6001, 8825, 11135, 30005, 46243, 55675, 150025, 231215, 786131, 1156075, 3930655, 19653275]

約数ペア:

[(1, 19653275), (5, 3930655), (17, 1156075), (25, 786131), (85, 231215), (131, 150025), (353, 55675), (425, 46243), (655, 30005), (1765, 11135), (2227, 8825), (3275, 6001)]