21621230

素因数分解:

$2^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{8221}}^1$

素因数の和:8491

約数の個数: 16

約数和(自身を含む): 39070944

約数和(自身を除く): 17449714

約数列:

[1, 2, 5, 10, 263, 526, 1315, 2630, 8221, 16442, 41105, 82210, 2162123, 4324246, 10810615, 21621230]

約数ペア:

[(1, 21621230), (2, 10810615), (5, 4324246), (10, 2162123), (263, 82210), (526, 41105), (1315, 16442), (2630, 8221)]