217820806557

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{251235071}}^1$

素因数の和:251235108

約数の個数: 12

約数和(自身を含む): 308516668416

約数和(自身を除く): 90695861859

約数列:

[1, 3, 17, 51, 289, 867, 251235071, 753705213, 4270996207, 12812988621, 72606935519, 217820806557]

約数ペア:

[(1, 217820806557), (3, 72606935519), (17, 12812988621), (51, 4270996207), (289, 753705213), (867, 251235071)]