19113731

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 24033024

約数和(自身を除く): 4919293

約数列:

[1, 7, 13, 91, 107, 151, 169, 749, 1057, 1183, 1391, 1963, 9737, 13741, 16157, 18083, 25519, 113099, 126581, 178633, 210041, 1470287, 2730533, 19113731]

約数ペア:

[(1, 19113731), (7, 2730533), (13, 1470287), (91, 210041), (107, 178633), (151, 126581), (169, 113099), (749, 25519), (1057, 18083), (1183, 16157), (1391, 13741), (1963, 9737)]