18916774

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:735

約数の個数: 16

約数和(自身を含む): 28847520

約数和(自身を除く): 9930746

約数列:

[1, 2, 103, 206, 229, 401, 458, 802, 23587, 41303, 47174, 82606, 91829, 183658, 9458387, 18916774]

約数ペア:

[(1, 18916774), (2, 9458387), (103, 183658), (206, 91829), (229, 82606), (401, 47174), (458, 41303), (802, 23587)]