19842004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 45403008

約数和(自身を除く): 25561004

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 151, 182, 247, 266, 302, 361, 364, 494, 532, 604, 722, 988, 1057, 1444, 1729, 1963, 2114, 2527, 2869, 3458, 3926, 4228, 4693, 5054, 5738, 6916, 7852, 9386, 10108, 11476, 13741, 18772, 20083, 27482, 32851, 37297, 40166, 54511, 54964, 65702, 74594, 80332, 109022, 131404, 149188, 218044, 261079, 381577, 522158, 708643, 763154, 1044316, 1417286, 1526308, 2834572, 4960501, 9921002, 19842004]

約数ペア:

[(1, 19842004), (2, 9921002), (4, 4960501), (7, 2834572), (13, 1526308), (14, 1417286), (19, 1044316), (26, 763154), (28, 708643), (38, 522158), (52, 381577), (76, 261079), (91, 218044), (133, 149188), (151, 131404), (182, 109022), (247, 80332), (266, 74594), (302, 65702), (361, 54964), (364, 54511), (494, 40166), (532, 37297), (604, 32851), (722, 27482), (988, 20083), (1057, 18772), (1444, 13741), (1729, 11476), (1963, 10108), (2114, 9386), (2527, 7852), (2869, 6916), (3458, 5738), (3926, 5054), (4228, 4693)]