21636818

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90911}}^1$

素因数の和:90937

約数の個数: 16

約数和(自身を含む): 39273984

約数和(自身を除く): 17637166

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90911, 181822, 636377, 1272754, 1545487, 3090974, 10818409, 21636818]

約数ペア:

[(1, 21636818), (2, 10818409), (7, 3090974), (14, 1545487), (17, 1272754), (34, 636377), (119, 181822), (238, 90911)]