20171227845

素因数分解:

$3^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1420009}}^1$

素因数の和:1420964

約数の個数: 16

約数和(自身を含む): 32308067520

約数和(自身を除く): 12136839675

約数列:

[1, 3, 5, 15, 947, 2841, 4735, 14205, 1420009, 4260027, 7100045, 21300135, 1344748523, 4034245569, 6723742615, 20171227845]

約数ペア:

[(1, 20171227845), (3, 6723742615), (5, 4034245569), (15, 1344748523), (947, 21300135), (2841, 7100045), (4735, 4260027), (14205, 1420009)]