86947021

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1531}}^1$

素因数の和:1625

約数の個数: 24

約数和(自身を含む): 108281760

約数和(自身を除く): 21334739

約数列:

[1, 7, 19, 49, 61, 133, 427, 931, 1159, 1531, 2989, 8113, 10717, 29089, 56791, 75019, 93391, 203623, 653737, 1425361, 1774429, 4576159, 12421003, 86947021]

約数ペア:

[(1, 86947021), (7, 12421003), (19, 4576159), (49, 1774429), (61, 1425361), (133, 653737), (427, 203623), (931, 93391), (1159, 75019), (1531, 56791), (2989, 29089), (8113, 10717)]