638856211

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{6133}}^1$

素因数の和:6810

約数の個数: 16

約数和(自身を含む): 763167744

約数和(自身を除く): 124311533

約数列:

[1, 7, 23, 161, 647, 4529, 6133, 14881, 42931, 104167, 141059, 987413, 3968051, 27776357, 91265173, 638856211]

約数ペア:

[(1, 638856211), (7, 91265173), (23, 27776357), (161, 3968051), (647, 987413), (4529, 141059), (6133, 104167), (14881, 42931)]