18216065

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 26198016

約数和(自身を除く): 7981951

約数列:

[1, 5, 7, 31, 35, 103, 155, 163, 217, 515, 721, 815, 1085, 1141, 3193, 3605, 5053, 5705, 15965, 16789, 22351, 25265, 35371, 83945, 111755, 117523, 176855, 520459, 587615, 2602295, 3643213, 18216065]

約数ペア:

[(1, 18216065), (5, 3643213), (7, 2602295), (31, 587615), (35, 520459), (103, 176855), (155, 117523), (163, 111755), (217, 83945), (515, 35371), (721, 25265), (815, 22351), (1085, 16789), (1141, 15965), (3193, 5705), (3605, 5053)]