21443510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1291}}^1$

素因数の和:1460

約数の個数: 32

約数和(自身を含む): 42418944

約数和(自身を除く): 20975434

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 151, 302, 755, 1291, 1510, 1661, 2582, 3322, 6455, 8305, 12910, 14201, 16610, 28402, 71005, 142010, 194941, 389882, 974705, 1949410, 2144351, 4288702, 10721755, 21443510]

約数ペア:

[(1, 21443510), (2, 10721755), (5, 4288702), (10, 2144351), (11, 1949410), (22, 974705), (55, 389882), (110, 194941), (151, 142010), (302, 71005), (755, 28402), (1291, 16610), (1510, 14201), (1661, 12910), (2582, 8305), (3322, 6455)]