18730413

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 32820480

約数和(自身を除く): 14090067

約数列:

[1, 3, 9, 13, 17, 27, 39, 43, 51, 73, 117, 129, 153, 219, 221, 351, 387, 459, 559, 657, 663, 731, 949, 1161, 1241, 1677, 1971, 1989, 2193, 2847, 3139, 3723, 5031, 5967, 6579, 8541, 9417, 9503, 11169, 15093, 16133, 19737, 25623, 28251, 28509, 33507, 40807, 48399, 53363, 84753, 85527, 122421, 145197, 160089, 256581, 367263, 435591, 480267, 693719, 1101789, 1440801, 2081157, 6243471, 18730413]

約数ペア:

[(1, 18730413), (3, 6243471), (9, 2081157), (13, 1440801), (17, 1101789), (27, 693719), (39, 480267), (43, 435591), (51, 367263), (73, 256581), (117, 160089), (129, 145197), (153, 122421), (219, 85527), (221, 84753), (351, 53363), (387, 48399), (459, 40807), (559, 33507), (657, 28509), (663, 28251), (731, 25623), (949, 19737), (1161, 16133), (1241, 15093), (1677, 11169), (1971, 9503), (1989, 9417), (2193, 8541), (2847, 6579), (3139, 5967), (3723, 5031)]