168704781

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{9833}}^1$

素因数の和:9905

約数の個数: 32

約数和(自身を含む): 276925440

約数和(自身を除く): 108220659

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 817, 903, 2451, 5719, 9833, 17157, 29499, 68831, 186827, 206493, 422819, 560481, 1268457, 1307789, 2959733, 3923367, 8033561, 8879199, 24100683, 56234927, 168704781]

約数ペア:

[(1, 168704781), (3, 56234927), (7, 24100683), (19, 8879199), (21, 8033561), (43, 3923367), (57, 2959733), (129, 1307789), (133, 1268457), (301, 560481), (399, 422819), (817, 206493), (903, 186827), (2451, 68831), (5719, 29499), (9833, 17157)]