21725378

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1\times {\mathrm{401}}^1$

素因数の和:769

約数の個数: 16

約数和(自身を含む): 33111936

約数和(自身を除く): 11386558

約数列:

[1, 2, 103, 206, 263, 401, 526, 802, 27089, 41303, 54178, 82606, 105463, 210926, 10862689, 21725378]

約数ペア:

[(1, 21725378), (2, 10862689), (103, 210926), (206, 105463), (263, 82606), (401, 54178), (526, 41303), (802, 27089)]