215681908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{4147729}}^1$

素因数の和:4147746

約数の個数: 12

約数和(自身を含む): 406477540

約数和(自身を除く): 190795632

約数列:

[1, 2, 4, 13, 26, 52, 4147729, 8295458, 16590916, 53920477, 107840954, 215681908]

約数ペア:

[(1, 215681908), (2, 107840954), (4, 53920477), (13, 16590916), (26, 8295458), (52, 4147729)]