19564420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18457}}^1$

素因数の和:18519

約数の個数: 24

約数和(自身を含む): 41862744

約数和(自身を除く): 22298324

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18457, 36914, 73828, 92285, 184570, 369140, 978221, 1956442, 3912884, 4891105, 9782210, 19564420]

約数ペア:

[(1, 19564420), (2, 9782210), (4, 4891105), (5, 3912884), (10, 1956442), (20, 978221), (53, 369140), (106, 184570), (212, 92285), (265, 73828), (530, 36914), (1060, 18457)]