212308894

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{489191}}^1$

素因数の和:489231

約数の個数: 16

約数和(自身を含む): 375699456

約数和(自身を除く): 163390562

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 489191, 978382, 3424337, 6848674, 15164921, 30329842, 106154447, 212308894]

約数ペア:

[(1, 212308894), (2, 106154447), (7, 30329842), (14, 15164921), (31, 6848674), (62, 3424337), (217, 978382), (434, 489191)]