19513105

素因数分解:

$5^1\times {\mathrm{31}}^3\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 16

約数和(自身を含む): 24380928

約数和(自身を除く): 4867823

約数列:

[1, 5, 31, 131, 155, 655, 961, 4061, 4805, 20305, 29791, 125891, 148955, 629455, 3902621, 19513105]

約数ペア:

[(1, 19513105), (5, 3902621), (31, 629455), (131, 148955), (155, 125891), (655, 29791), (961, 20305), (4061, 4805)]