21698306

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{29243}}^1$

素因数の和:29305

約数の個数: 16

約数和(自身を含む): 37900224

約数和(自身を除く): 16201918

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 29243, 58486, 204701, 409402, 1549879, 3099758, 10849153, 21698306]

約数ペア:

[(1, 21698306), (2, 10849153), (7, 3099758), (14, 1549879), (53, 409402), (106, 204701), (371, 58486), (742, 29243)]