19911952

素因数分解:

$2^4\times {\mathrm{367}}^1\times {\mathrm{3391}}^1$

素因数の和:3766

約数の個数: 20

約数和(自身を含む): 38695936

約数和(自身を除く): 18783984

約数列:

[1, 2, 4, 8, 16, 367, 734, 1468, 2936, 3391, 5872, 6782, 13564, 27128, 54256, 1244497, 2488994, 4977988, 9955976, 19911952]

約数ペア:

[(1, 19911952), (2, 9955976), (4, 4977988), (8, 2488994), (16, 1244497), (367, 54256), (734, 27128), (1468, 13564), (2936, 6782), (3391, 5872)]