19489743

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 15891057

約数列:

[1, 3, 7, 9, 13, 21, 39, 53, 63, 91, 117, 159, 273, 371, 449, 477, 689, 819, 1113, 1347, 2067, 3143, 3339, 4041, 4823, 5837, 6201, 9429, 14469, 17511, 23797, 28287, 40859, 43407, 52533, 71391, 122577, 166579, 214173, 309361, 367731, 499737, 928083, 1499211, 2165527, 2784249, 6496581, 19489743]

約数ペア:

[(1, 19489743), (3, 6496581), (7, 2784249), (9, 2165527), (13, 1499211), (21, 928083), (39, 499737), (53, 367731), (63, 309361), (91, 214173), (117, 166579), (159, 122577), (273, 71391), (371, 52533), (449, 43407), (477, 40859), (689, 28287), (819, 23797), (1113, 17511), (1347, 14469), (2067, 9429), (3143, 6201), (3339, 5837), (4041, 4823)]