217355865

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{630017}}^1$

素因数の和:630048

約数の個数: 16

約数和(自身を含む): 362890368

約数和(自身を除く): 145534503

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 630017, 1890051, 3150085, 9450255, 14490391, 43471173, 72451955, 217355865]

約数ペア:

[(1, 217355865), (3, 72451955), (5, 43471173), (15, 14490391), (23, 9450255), (69, 3150085), (115, 1890051), (345, 630017)]