217231730

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{133271}}^1$

素因数の和:133441

約数の個数: 16

約数和(自身を含む): 393418944

約数和(自身を除く): 176187214

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 133271, 266542, 666355, 1332710, 21723173, 43446346, 108615865, 217231730]

約数ペア:

[(1, 217231730), (2, 108615865), (5, 43446346), (10, 21723173), (163, 1332710), (326, 666355), (815, 266542), (1630, 133271)]