18789081

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 27724800

約数和(自身を除く): 8935719

約数列:

[1, 3, 19, 37, 57, 59, 111, 151, 177, 453, 703, 1121, 2109, 2183, 2869, 3363, 5587, 6549, 8607, 8909, 16761, 26727, 41477, 106153, 124431, 169271, 318459, 329633, 507813, 988899, 6263027, 18789081]

約数ペア:

[(1, 18789081), (3, 6263027), (19, 988899), (37, 507813), (57, 329633), (59, 318459), (111, 169271), (151, 124431), (177, 106153), (453, 41477), (703, 26727), (1121, 16761), (2109, 8909), (2183, 8607), (2869, 6549), (3363, 5587)]