720230721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{33073}}^1$

素因数の和:33161

約数の個数: 32

約数和(自身を含む): 1181138688

約数和(自身を除く): 460907967

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 1037, 1281, 3111, 7259, 21777, 33073, 99219, 231511, 562241, 694533, 1686723, 2017453, 3935687, 6052359, 11807061, 14122171, 34296701, 42366513, 102890103, 240076907, 720230721]

約数ペア:

[(1, 720230721), (3, 240076907), (7, 102890103), (17, 42366513), (21, 34296701), (51, 14122171), (61, 11807061), (119, 6052359), (183, 3935687), (357, 2017453), (427, 1686723), (1037, 694533), (1281, 562241), (3111, 231511), (7259, 99219), (21777, 33073)]