20874963

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{2143}}^1$

素因数の和:2354

約数の個数: 16

約数和(自身を含む): 29638656

約数和(自身を除く): 8763693

約数列:

[1, 3, 17, 51, 191, 573, 2143, 3247, 6429, 9741, 36431, 109293, 409313, 1227939, 6958321, 20874963]

約数ペア:

[(1, 20874963), (3, 6958321), (17, 1227939), (51, 409313), (191, 109293), (573, 36431), (2143, 9741), (3247, 6429)]