18505305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4519}}^1$

素因数の和:4550

約数の個数: 48

約数和(自身を含む): 39486720

約数和(自身を除く): 20981415

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, 4519, 13557, 22595, 31633, 40671, 58747, 67785, 94899, 158165, 176241, 203355, 284697, 293735, 411229, 474495, 528723, 881205, 1233687, 1423485, 2056145, 2643615, 3701061, 6168435, 18505305]

約数ペア:

[(1, 18505305), (3, 6168435), (5, 3701061), (7, 2643615), (9, 2056145), (13, 1423485), (15, 1233687), (21, 881205), (35, 528723), (39, 474495), (45, 411229), (63, 293735), (65, 284697), (91, 203355), (105, 176241), (117, 158165), (195, 94899), (273, 67785), (315, 58747), (455, 40671), (585, 31633), (819, 22595), (1365, 13557), (4095, 4519)]