8247729

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2953}}^1$

素因数の和:2989

約数の個数: 24

約数和(自身を含む): 13470240

約数和(自身を除く): 5222511

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 2953, 8859, 20671, 56107, 62013, 144697, 168321, 392749, 434091, 1178247, 2749243, 8247729]

約数ペア:

[(1, 8247729), (3, 2749243), (7, 1178247), (19, 434091), (21, 392749), (49, 168321), (57, 144697), (133, 62013), (147, 56107), (399, 20671), (931, 8859), (2793, 2953)]