19907426

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 38659680

約数和(自身を除く): 18752254

約数列:

[1, 2, 7, 11, 14, 22, 49, 59, 77, 98, 118, 154, 313, 413, 539, 626, 649, 826, 1078, 1298, 2191, 2891, 3443, 4382, 4543, 5782, 6886, 9086, 15337, 18467, 24101, 30674, 31801, 36934, 48202, 63602, 129269, 168707, 203137, 258538, 337414, 406274, 904883, 1421959, 1809766, 2843918, 9953713, 19907426]

約数ペア:

[(1, 19907426), (2, 9953713), (7, 2843918), (11, 1809766), (14, 1421959), (22, 904883), (49, 406274), (59, 337414), (77, 258538), (98, 203137), (118, 168707), (154, 129269), (313, 63602), (413, 48202), (539, 36934), (626, 31801), (649, 30674), (826, 24101), (1078, 18467), (1298, 15337), (2191, 9086), (2891, 6886), (3443, 5782), (4382, 4543)]