217660961

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{2207}}^1$

素因数の和:2480

約数の個数: 16

約数和(自身を含む): 253584384

約数和(自身を除く): 35923423

約数列:

[1, 7, 73, 193, 511, 1351, 2207, 14089, 15449, 98623, 161111, 425951, 1127777, 2981657, 31094423, 217660961]

約数ペア:

[(1, 217660961), (7, 31094423), (73, 2981657), (193, 1127777), (511, 425951), (1351, 161111), (2207, 98623), (14089, 15449)]