12947205

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12157}}^1$

素因数の和:12236

約数の個数: 16

約数和(自身を含む): 21009024

約数和(自身を除く): 8061819

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 12157, 36471, 60785, 182355, 863147, 2589441, 4315735, 12947205]

約数ペア:

[(1, 12947205), (3, 4315735), (5, 2589441), (15, 863147), (71, 182355), (213, 60785), (355, 36471), (1065, 12157)]