18704906

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2089}}^1$

素因数の和:2150

約数の個数: 24

約数和(自身を含む): 31688580

約数和(自身を除く): 12983674

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2089, 4178, 4477, 8954, 22979, 45958, 77293, 154586, 252769, 505538, 850223, 1700446, 9352453, 18704906]

約数ペア:

[(1, 18704906), (2, 9352453), (11, 1700446), (22, 850223), (37, 505538), (74, 252769), (121, 154586), (242, 77293), (407, 45958), (814, 22979), (2089, 8954), (4178, 4477)]