20435499

素因数分解:

$3^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:480

約数の個数: 36

約数和(自身を含む): 34678800

約数和(自身を除く): 14243301

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 149, 311, 441, 447, 933, 1043, 1341, 2177, 2799, 3129, 6531, 7301, 9387, 15239, 19593, 21903, 45717, 46339, 65709, 137151, 139017, 324373, 417051, 973119, 2270611, 2919357, 6811833, 20435499]

約数ペア:

[(1, 20435499), (3, 6811833), (7, 2919357), (9, 2270611), (21, 973119), (49, 417051), (63, 324373), (147, 139017), (149, 137151), (311, 65709), (441, 46339), (447, 45717), (933, 21903), (1043, 19593), (1341, 15239), (2177, 9387), (2799, 7301), (3129, 6531)]