20937735

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5113}}^1$

素因数の和:5144

約数の個数: 48

約数和(自身を含む): 44675904

約数和(自身を除く): 23738169

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5113, 15339, 25565, 35791, 46017, 66469, 76695, 107373, 178955, 199407, 230085, 322119, 332345, 465283, 536865, 598221, 997035, 1395849, 1610595, 2326415, 2991105, 4187547, 6979245, 20937735]

約数ペア:

[(1, 20937735), (3, 6979245), (5, 4187547), (7, 2991105), (9, 2326415), (13, 1610595), (15, 1395849), (21, 997035), (35, 598221), (39, 536865), (45, 465283), (63, 332345), (65, 322119), (91, 230085), (105, 199407), (117, 178955), (195, 107373), (273, 76695), (315, 66469), (455, 46017), (585, 35791), (819, 25565), (1365, 15339), (4095, 5113)]