21749036

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 38874864

約数和(自身を除く): 17125828

約数列:

[1, 2, 4, 73, 146, 211, 292, 353, 422, 706, 844, 1412, 15403, 25769, 30806, 51538, 61612, 74483, 103076, 148966, 297932, 5437259, 10874518, 21749036]

約数ペア:

[(1, 21749036), (2, 10874518), (4, 5437259), (73, 297932), (146, 148966), (211, 103076), (292, 74483), (353, 61612), (422, 51538), (706, 30806), (844, 25769), (1412, 15403)]