214925515

素因数分解:

$5^1\times 7^4\times {\mathrm{17903}}^1$

素因数の和:17936

約数の個数: 20

約数和(自身を含む): 300894624

約数和(自身を除く): 85969109

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 17903, 89515, 125321, 626605, 877247, 4386235, 6140729, 30703645, 42985103, 214925515]

約数ペア:

[(1, 214925515), (5, 42985103), (7, 30703645), (35, 6140729), (49, 4386235), (245, 877247), (343, 626605), (1715, 125321), (2401, 89515), (12005, 17903)]