21411460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152939}}^1$

素因数の和:152955

約数の個数: 24

約数和(自身を含む): 51387840

約数和(自身を除く): 29976380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152939, 305878, 611756, 764695, 1070573, 1529390, 2141146, 3058780, 4282292, 5352865, 10705730, 21411460]

約数ペア:

[(1, 21411460), (2, 10705730), (4, 5352865), (5, 4282292), (7, 3058780), (10, 2141146), (14, 1529390), (20, 1070573), (28, 764695), (35, 611756), (70, 305878), (140, 152939)]