20788383

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 35684352

約数和(自身を除く): 14895969

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2903, 7161, 8709, 20321, 31933, 60963, 89993, 95799, 223531, 269979, 629951, 670593, 989923, 1889853, 2969769, 6929461, 20788383]

約数ペア:

[(1, 20788383), (3, 6929461), (7, 2969769), (11, 1889853), (21, 989923), (31, 670593), (33, 629951), (77, 269979), (93, 223531), (217, 95799), (231, 89993), (341, 60963), (651, 31933), (1023, 20321), (2387, 8709), (2903, 7161)]