217837551

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1\times {\mathrm{3607}}^1$

素因数の和:4142

約数の個数: 16

約数和(自身を含む): 298222848

約数和(自身を除く): 80385297

約数列:

[1, 3, 41, 123, 491, 1473, 3607, 10821, 20131, 60393, 147887, 443661, 1771037, 5313111, 72612517, 217837551]

約数ペア:

[(1, 217837551), (3, 72612517), (41, 5313111), (123, 1771037), (491, 443661), (1473, 147887), (3607, 60393), (10821, 20131)]