21032990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1787}}^1$

素因数の和:1912

約数の個数: 32

約数和(自身を含む): 41710464

約数和(自身を除く): 20677474

約数列:

[1, 2, 5, 10, 11, 22, 55, 107, 110, 214, 535, 1070, 1177, 1787, 2354, 3574, 5885, 8935, 11770, 17870, 19657, 39314, 98285, 191209, 196570, 382418, 956045, 1912090, 2103299, 4206598, 10516495, 21032990]

約数ペア:

[(1, 21032990), (2, 10516495), (5, 4206598), (10, 2103299), (11, 1912090), (22, 956045), (55, 382418), (107, 196570), (110, 191209), (214, 98285), (535, 39314), (1070, 19657), (1177, 17870), (1787, 11770), (2354, 8935), (3574, 5885)]