19505817

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{241}}^1$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 31315284

約数和(自身を除く): 11809467

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 241, 391, 529, 723, 1173, 1587, 2169, 3519, 4097, 4761, 5543, 8993, 12291, 16629, 26979, 36873, 49887, 80937, 94231, 127489, 282693, 382467, 848079, 1147401, 2167313, 6501939, 19505817]

約数ペア:

[(1, 19505817), (3, 6501939), (9, 2167313), (17, 1147401), (23, 848079), (51, 382467), (69, 282693), (153, 127489), (207, 94231), (241, 80937), (391, 49887), (529, 36873), (723, 26979), (1173, 16629), (1587, 12291), (2169, 8993), (3519, 5543), (4097, 4761)]