19810384

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112559}}^1$

素因数の和:112578

約数の個数: 20

約数和(自身を含む): 41872320

約数和(自身を除く): 22061936

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112559, 225118, 450236, 900472, 1238149, 1800944, 2476298, 4952596, 9905192, 19810384]

約数ペア:

[(1, 19810384), (2, 9905192), (4, 4952596), (8, 2476298), (11, 1800944), (16, 1238149), (22, 900472), (44, 450236), (88, 225118), (176, 112559)]