19671350

素因数分解:

$2^1\times 5^2\times {\mathrm{397}}^1\times {\mathrm{991}}^1$

素因数の和:1400

約数の個数: 24

約数和(自身を含む): 36717888

約数和(自身を除く): 17046538

約数列:

[1, 2, 5, 10, 25, 50, 397, 794, 991, 1982, 1985, 3970, 4955, 9910, 9925, 19850, 24775, 49550, 393427, 786854, 1967135, 3934270, 9835675, 19671350]

約数ペア:

[(1, 19671350), (2, 9835675), (5, 3934270), (10, 1967135), (25, 786854), (50, 393427), (397, 49550), (794, 24775), (991, 19850), (1982, 9925), (1985, 9910), (3970, 4955)]