21839728

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{6121}}^1$

素因数の和:6352

約数の個数: 20

約数和(自身を含む): 42511168

約数和(自身を除く): 20671440

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 6121, 12242, 24484, 48968, 97936, 1364983, 2729966, 5459932, 10919864, 21839728]

約数ペア:

[(1, 21839728), (2, 10919864), (4, 5459932), (8, 2729966), (16, 1364983), (223, 97936), (446, 48968), (892, 24484), (1784, 12242), (3568, 6121)]