19987740531

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{516359}}^1$

素因数の和:516416

約数の個数: 48

約数和(自身を含む): 34798533120

約数和(自身を除く): 14810792589

約数列:

[1, 3, 9, 11, 17, 23, 33, 51, 69, 99, 153, 187, 207, 253, 391, 561, 759, 1173, 1683, 2277, 3519, 4301, 12903, 38709, 516359, 1549077, 4647231, 5679949, 8778103, 11876257, 17039847, 26334309, 35628771, 51119541, 79002927, 96559133, 106886313, 130638827, 201896369, 289677399, 391916481, 605689107, 869032197, 1175749443, 1817067321, 2220860059, 6662580177, 19987740531]

約数ペア:

[(1, 19987740531), (3, 6662580177), (9, 2220860059), (11, 1817067321), (17, 1175749443), (23, 869032197), (33, 605689107), (51, 391916481), (69, 289677399), (99, 201896369), (153, 130638827), (187, 106886313), (207, 96559133), (253, 79002927), (391, 51119541), (561, 35628771), (759, 26334309), (1173, 17039847), (1683, 11876257), (2277, 8778103), (3519, 5679949), (4301, 4647231), (12903, 1549077), (38709, 516359)]