21504730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3847}}^1$

素因数の和:3910

約数の個数: 32

約数和(自身を含む): 42666624

約数和(自身を除く): 21161894

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3847, 5590, 7694, 19235, 38470, 50011, 100022, 165421, 250055, 330842, 500110, 827105, 1654210, 2150473, 4300946, 10752365, 21504730]

約数ペア:

[(1, 21504730), (2, 10752365), (5, 4300946), (10, 2150473), (13, 1654210), (26, 827105), (43, 500110), (65, 330842), (86, 250055), (130, 165421), (215, 100022), (430, 50011), (559, 38470), (1118, 19235), (2795, 7694), (3847, 5590)]