19918256

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3761}}^1$

素因数の和:4100

約数の個数: 20

約数和(自身を含む): 38718504

約数和(自身を除く): 18800248

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3761, 5296, 7522, 15044, 30088, 60176, 1244891, 2489782, 4979564, 9959128, 19918256]

約数ペア:

[(1, 19918256), (2, 9959128), (4, 4979564), (8, 2489782), (16, 1244891), (331, 60176), (662, 30088), (1324, 15044), (2648, 7522), (3761, 5296)]