20816517

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{2137}}^1$

素因数の和:2348

約数の個数: 16

約数和(自身を含む): 29555712

約数和(自身を除く): 8739195

約数列:

[1, 3, 17, 51, 191, 573, 2137, 3247, 6411, 9741, 36329, 108987, 408167, 1224501, 6938839, 20816517]

約数ペア:

[(1, 20816517), (3, 6938839), (17, 1224501), (51, 408167), (191, 108987), (573, 36329), (2137, 9741), (3247, 6411)]