21020150

素因数分解:

$2^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{3929}}^1$

素因数の和:4048

約数の個数: 24

約数和(自身を含む): 39472920

約数和(自身を除く): 18452770

約数列:

[1, 2, 5, 10, 25, 50, 107, 214, 535, 1070, 2675, 3929, 5350, 7858, 19645, 39290, 98225, 196450, 420403, 840806, 2102015, 4204030, 10510075, 21020150]

約数ペア:

[(1, 21020150), (2, 10510075), (5, 4204030), (10, 2102015), (25, 840806), (50, 420403), (107, 196450), (214, 98225), (535, 39290), (1070, 19645), (2675, 7858), (3929, 5350)]