20464787

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3659}}^1$

素因数の和:3730

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 4833133

約数列:

[1, 7, 17, 47, 119, 329, 799, 3659, 5593, 25613, 62203, 171973, 435421, 1203811, 2923541, 20464787]

約数ペア:

[(1, 20464787), (7, 2923541), (17, 1203811), (47, 435421), (119, 171973), (329, 62203), (799, 25613), (3659, 5593)]