18999435

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19707765

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 449, 455, 465, 651, 1085, 1209, 1347, 1365, 2015, 2245, 2821, 3143, 3255, 5837, 6045, 6735, 8463, 9429, 13919, 14105, 15715, 17511, 29185, 40859, 41757, 42315, 47145, 69595, 87555, 97433, 122577, 180947, 204295, 208785, 292299, 487165, 542841, 612885, 904735, 1266629, 1461495, 2714205, 3799887, 6333145, 18999435]

約数ペア:

[(1, 18999435), (3, 6333145), (5, 3799887), (7, 2714205), (13, 1461495), (15, 1266629), (21, 904735), (31, 612885), (35, 542841), (39, 487165), (65, 292299), (91, 208785), (93, 204295), (105, 180947), (155, 122577), (195, 97433), (217, 87555), (273, 69595), (403, 47145), (449, 42315), (455, 41757), (465, 40859), (651, 29185), (1085, 17511), (1209, 15715), (1347, 14105), (1365, 13919), (2015, 9429), (2245, 8463), (2821, 6735), (3143, 6045), (3255, 5837)]