66378781

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 80766720

約数和(自身を除く): 14387939

約数列:

[1, 7, 31, 49, 89, 217, 491, 623, 1519, 2759, 3437, 4361, 15221, 19313, 24059, 43699, 106547, 135191, 305893, 745829, 1354669, 2141251, 9482683, 66378781]

約数ペア:

[(1, 66378781), (7, 9482683), (31, 2141251), (49, 1354669), (89, 745829), (217, 305893), (491, 135191), (623, 106547), (1519, 43699), (2759, 24059), (3437, 19313), (4361, 15221)]