12989977

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 5395943

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 683, 1001, 1463, 1729, 2717, 4781, 7513, 8879, 12977, 19019, 52591, 62153, 90839, 97669, 142747, 168701, 683683, 999229, 1180907, 1855711, 12989977]

約数ペア:

[(1, 12989977), (7, 1855711), (11, 1180907), (13, 999229), (19, 683683), (77, 168701), (91, 142747), (133, 97669), (143, 90839), (209, 62153), (247, 52591), (683, 19019), (1001, 12977), (1463, 8879), (1729, 7513), (2717, 4781)]