68180721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1597}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 110453760

約数和(自身を除く): 42273039

約数列:

[1, 3, 7, 19, 21, 57, 107, 133, 321, 399, 749, 1597, 2033, 2247, 4791, 6099, 11179, 14231, 30343, 33537, 42693, 91029, 170879, 212401, 512637, 637203, 1196153, 3246701, 3588459, 9740103, 22726907, 68180721]

約数ペア:

[(1, 68180721), (3, 22726907), (7, 9740103), (19, 3588459), (21, 3246701), (57, 1196153), (107, 637203), (133, 512637), (321, 212401), (399, 170879), (749, 91029), (1597, 42693), (2033, 33537), (2247, 30343), (4791, 14231), (6099, 11179)]