209957462

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19841}}^1$

素因数の和:19904

約数の個数: 32

約数和(自身を含む): 380013984

約数和(自身を除く): 170056522

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 286, 407, 481, 814, 962, 5291, 10582, 19841, 39682, 218251, 257933, 436502, 515866, 734117, 1468234, 2837263, 5674526, 8075287, 9543521, 16150574, 19087042, 104978731, 209957462]

約数ペア:

[(1, 209957462), (2, 104978731), (11, 19087042), (13, 16150574), (22, 9543521), (26, 8075287), (37, 5674526), (74, 2837263), (143, 1468234), (286, 734117), (407, 515866), (481, 436502), (814, 257933), (962, 218251), (5291, 39682), (10582, 19841)]