20079801

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2293}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 33400640

約数和(自身を除く): 13320839

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2293, 2919, 6879, 8757, 16051, 20637, 48153, 144459, 318727, 956181, 2231089, 2868543, 6693267, 20079801]

約数ペア:

[(1, 20079801), (3, 6693267), (7, 2868543), (9, 2231089), (21, 956181), (63, 318727), (139, 144459), (417, 48153), (973, 20637), (1251, 16051), (2293, 8757), (2919, 6879)]