21039458

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25847}}^1$

素因数の和:25897

約数の個数: 16

約数和(自身を含む): 35360064

約数和(自身を除く): 14320606

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25847, 51694, 284317, 568634, 956339, 1912678, 10519729, 21039458]

約数ペア:

[(1, 21039458), (2, 10519729), (11, 1912678), (22, 956339), (37, 568634), (74, 284317), (407, 51694), (814, 25847)]