19421269

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1699}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 4079531

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1699, 11431, 11893, 39077, 120629, 273539, 844403, 2774467, 19421269]

約数ペア:

[(1, 19421269), (7, 2774467), (23, 844403), (71, 273539), (161, 120629), (497, 39077), (1633, 11893), (1699, 11431)]