31105971

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 52967520

約数和(自身を除く): 21861549

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 169, 221, 351, 401, 459, 507, 663, 1203, 1521, 1989, 2873, 3609, 4563, 5213, 5967, 6817, 8619, 10827, 15639, 20451, 25857, 46917, 61353, 67769, 77571, 88621, 140751, 184059, 203307, 265863, 609921, 797589, 1152073, 1829763, 2392767, 3456219, 10368657, 31105971]

約数ペア:

[(1, 31105971), (3, 10368657), (9, 3456219), (13, 2392767), (17, 1829763), (27, 1152073), (39, 797589), (51, 609921), (117, 265863), (153, 203307), (169, 184059), (221, 140751), (351, 88621), (401, 77571), (459, 67769), (507, 61353), (663, 46917), (1203, 25857), (1521, 20451), (1989, 15639), (2873, 10827), (3609, 8619), (4563, 6817), (5213, 5967)]