19811450

素因数分解:

$2^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{2053}}^1$

素因数の和:2258

約数の個数: 24

約数和(自身を含む): 37058268

約数和(自身を除く): 17246818

約数列:

[1, 2, 5, 10, 25, 50, 193, 386, 965, 1930, 2053, 4106, 4825, 9650, 10265, 20530, 51325, 102650, 396229, 792458, 1981145, 3962290, 9905725, 19811450]

約数ペア:

[(1, 19811450), (2, 9905725), (5, 3962290), (10, 1981145), (25, 792458), (50, 396229), (193, 102650), (386, 51325), (965, 20530), (1930, 10265), (2053, 9650), (4106, 4825)]