21504492

素因数分解:

$2^2\times 3^2\times {\mathrm{643}}^1\times {\mathrm{929}}^1$

素因数の和:1582

約数の個数: 36

約数和(自身を含む): 54501720

約数和(自身を除く): 32997228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 643, 929, 1286, 1858, 1929, 2572, 2787, 3716, 3858, 5574, 5787, 7716, 8361, 11148, 11574, 16722, 23148, 33444, 597347, 1194694, 1792041, 2389388, 3584082, 5376123, 7168164, 10752246, 21504492]

約数ペア:

[(1, 21504492), (2, 10752246), (3, 7168164), (4, 5376123), (6, 3584082), (9, 2389388), (12, 1792041), (18, 1194694), (36, 597347), (643, 33444), (929, 23148), (1286, 16722), (1858, 11574), (1929, 11148), (2572, 8361), (2787, 7716), (3716, 5787), (3858, 5574)]