19933605

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 37200384

約数和(自身を除く): 17266779

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 71, 85, 153, 213, 255, 355, 367, 639, 765, 1065, 1101, 1207, 1835, 3195, 3303, 3621, 5505, 6035, 6239, 10863, 16515, 18105, 18717, 26057, 31195, 54315, 56151, 78171, 93585, 130285, 234513, 280755, 390855, 442969, 1172565, 1328907, 2214845, 3986721, 6644535, 19933605]

約数ペア:

[(1, 19933605), (3, 6644535), (5, 3986721), (9, 2214845), (15, 1328907), (17, 1172565), (45, 442969), (51, 390855), (71, 280755), (85, 234513), (153, 130285), (213, 93585), (255, 78171), (355, 56151), (367, 54315), (639, 31195), (765, 26057), (1065, 18717), (1101, 18105), (1207, 16515), (1835, 10863), (3195, 6239), (3303, 6035), (3621, 5505)]