217804535921

素因数分解:

$7^3\times {\mathrm{631}}^1\times {\mathrm{1006337}}^1$

素因数の和:1006989

約数の個数: 16

約数和(自身を含む): 254402246400

約数和(自身を除く): 36597710479

約数列:

[1, 7, 49, 343, 631, 4417, 30919, 216433, 1006337, 7044359, 49310513, 345173591, 634998647, 4444990529, 31114933703, 217804535921]

約数ペア:

[(1, 217804535921), (7, 31114933703), (49, 4444990529), (343, 634998647), (631, 345173591), (4417, 49310513), (30919, 7044359), (216433, 1006337)]