21581652

素因数分解:

$2^2\times 3^1\times {\mathrm{643}}^1\times {\mathrm{2797}}^1$

素因数の和:3447

約数の個数: 24

約数和(自身を含む): 50453536

約数和(自身を除く): 28871884

約数列:

[1, 2, 3, 4, 6, 12, 643, 1286, 1929, 2572, 2797, 3858, 5594, 7716, 8391, 11188, 16782, 33564, 1798471, 3596942, 5395413, 7193884, 10790826, 21581652]

約数ペア:

[(1, 21581652), (2, 10790826), (3, 7193884), (4, 5395413), (6, 3596942), (12, 1798471), (643, 33564), (1286, 16782), (1929, 11188), (2572, 8391), (2797, 7716), (3858, 5594)]