21463150

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2179}}^1$

素因数の和:2388

約数の個数: 24

約数和(自身を含む): 40142520

約数和(自身を除く): 18679370

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2179, 4358, 4925, 9850, 10895, 21790, 54475, 108950, 429263, 858526, 2146315, 4292630, 10731575, 21463150]

約数ペア:

[(1, 21463150), (2, 10731575), (5, 4292630), (10, 2146315), (25, 858526), (50, 429263), (197, 108950), (394, 54475), (985, 21790), (1970, 10895), (2179, 9850), (4358, 4925)]