19927789

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{557}}^1$

素因数の和:852

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 4177811

約数列:

[1, 7, 19, 133, 269, 557, 1883, 3899, 5111, 10583, 35777, 74081, 149833, 1048831, 2846827, 19927789]

約数ペア:

[(1, 19927789), (7, 2846827), (19, 1048831), (133, 149833), (269, 74081), (557, 35777), (1883, 10583), (3899, 5111)]