19953818

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{1153}}^1$

素因数の和:1681

約数の個数: 16

約数和(自身を含む): 31781160

約数和(自身を除く): 11827342

約数列:

[1, 2, 17, 34, 509, 1018, 1153, 2306, 8653, 17306, 19601, 39202, 586877, 1173754, 9976909, 19953818]

約数ペア:

[(1, 19953818), (2, 9976909), (17, 1173754), (34, 586877), (509, 39202), (1018, 19601), (1153, 17306), (2306, 8653)]