21988162

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2626

約数の個数: 24

約数和(自身を含む): 38813580

約数和(自身を除く): 16825418

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2521, 4361, 5042, 8722, 17647, 35294, 123529, 224369, 247058, 448738, 1570583, 3141166, 10994081, 21988162]

約数ペア:

[(1, 21988162), (2, 10994081), (7, 3141166), (14, 1570583), (49, 448738), (89, 247058), (98, 224369), (178, 123529), (623, 35294), (1246, 17647), (2521, 8722), (4361, 5042)]