18138890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23557}}^1$

素因数の和:23582

約数の個数: 32

約数和(自身を含む): 40708224

約数和(自身を除く): 22569334

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 23557, 47114, 117785, 164899, 235570, 259127, 329798, 518254, 824495, 1295635, 1648990, 1813889, 2591270, 3627778, 9069445, 18138890]

約数ペア:

[(1, 18138890), (2, 9069445), (5, 3627778), (7, 2591270), (10, 1813889), (11, 1648990), (14, 1295635), (22, 824495), (35, 518254), (55, 329798), (70, 259127), (77, 235570), (110, 164899), (154, 117785), (385, 47114), (770, 23557)]