66388763

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 80075520

約数和(自身を除く): 13686757

約数列:

[1, 7, 31, 71, 139, 217, 497, 961, 973, 2201, 4309, 6727, 9869, 15407, 30163, 68231, 69083, 133579, 305939, 477617, 935053, 2141573, 9484109, 66388763]

約数ペア:

[(1, 66388763), (7, 9484109), (31, 2141573), (71, 935053), (139, 477617), (217, 305939), (497, 133579), (961, 69083), (973, 68231), (2201, 30163), (4309, 15407), (6727, 9869)]