399916377

素因数分解:

$3^2\times 7^1\times {\mathrm{6347879}}^1$

素因数の和:6347892

約数の個数: 12

約数和(自身を含む): 660179520

約数和(自身を除く): 260263143

約数列:

[1, 3, 7, 9, 21, 63, 6347879, 19043637, 44435153, 57130911, 133305459, 399916377]

約数ペア:

[(1, 399916377), (3, 133305459), (7, 57130911), (9, 44435153), (21, 19043637), (63, 6347879)]