2197855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 2916000

約数和(自身を除く): 718145

約数列:

[1, 5, 11, 55, 89, 445, 449, 979, 2245, 4895, 4939, 24695, 39961, 199805, 439571, 2197855]

約数ペア:

[(1, 2197855), (5, 439571), (11, 199805), (55, 39961), (89, 24695), (445, 4939), (449, 4895), (979, 2245)]