21641050

素因数分解:

$2^1\times 5^2\times {\mathrm{269}}^1\times {\mathrm{1609}}^1$

素因数の和:1890

約数の個数: 24

約数和(自身を含む): 40427100

約数和(自身を除く): 18786050

約数列:

[1, 2, 5, 10, 25, 50, 269, 538, 1345, 1609, 2690, 3218, 6725, 8045, 13450, 16090, 40225, 80450, 432821, 865642, 2164105, 4328210, 10820525, 21641050]

約数ペア:

[(1, 21641050), (2, 10820525), (5, 4328210), (10, 2164105), (25, 865642), (50, 432821), (269, 80450), (538, 40225), (1345, 16090), (1609, 13450), (2690, 8045), (3218, 6725)]