217564705

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{17681}}^1$

素因数の和:17816

約数の個数: 16

約数和(自身を含む): 274990464

約数和(自身を除く): 57425759

約数列:

[1, 5, 23, 107, 115, 535, 2461, 12305, 17681, 88405, 406663, 1891867, 2033315, 9459335, 43512941, 217564705]

約数ペア:

[(1, 217564705), (5, 43512941), (23, 9459335), (107, 2033315), (115, 1891867), (535, 406663), (2461, 88405), (12305, 17681)]