21874745

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 27257472

約数和(自身を除く): 5382727

約数列:

[1, 5, 43, 71, 215, 355, 1433, 3053, 7165, 15265, 61619, 101743, 308095, 508715, 4374949, 21874745]

約数ペア:

[(1, 21874745), (5, 4374949), (43, 508715), (71, 308095), (215, 101743), (355, 61619), (1433, 15265), (3053, 7165)]