21264752

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12421}}^1$

素因数の和:12536

約数の個数: 20

約数和(自身を含む): 41588856

約数和(自身を除く): 20324104

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12421, 24842, 49684, 99368, 198736, 1329047, 2658094, 5316188, 10632376, 21264752]

約数ペア:

[(1, 21264752), (2, 10632376), (4, 5316188), (8, 2658094), (16, 1329047), (107, 198736), (214, 99368), (428, 49684), (856, 24842), (1712, 12421)]