127918557

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{881}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 213817968

約数和(自身を除く): 85899411

約数列:

[1, 3, 9, 13, 17, 39, 51, 73, 117, 153, 219, 221, 657, 663, 881, 949, 1241, 1989, 2643, 2847, 3723, 7929, 8541, 11169, 11453, 14977, 16133, 34359, 44931, 48399, 64313, 103077, 134793, 145197, 192939, 194701, 578817, 584103, 836069, 1093321, 1752309, 2508207, 3279963, 7524621, 9839889, 14213173, 42639519, 127918557]

約数ペア:

[(1, 127918557), (3, 42639519), (9, 14213173), (13, 9839889), (17, 7524621), (39, 3279963), (51, 2508207), (73, 1752309), (117, 1093321), (153, 836069), (219, 584103), (221, 578817), (657, 194701), (663, 192939), (881, 145197), (949, 134793), (1241, 103077), (1989, 64313), (2643, 48399), (2847, 44931), (3723, 34359), (7929, 16133), (8541, 14977), (11169, 11453)]