20694639

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{383}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 33030144

約数和(自身を除く): 12335505

約数列:

[1, 3, 7, 21, 31, 83, 93, 217, 249, 383, 581, 651, 1149, 1743, 2573, 2681, 7719, 8043, 11873, 18011, 31789, 35619, 54033, 83111, 95367, 222523, 249333, 667569, 985459, 2956377, 6898213, 20694639]

約数ペア:

[(1, 20694639), (3, 6898213), (7, 2956377), (21, 985459), (31, 667569), (83, 249333), (93, 222523), (217, 95367), (249, 83111), (383, 54033), (581, 35619), (651, 31789), (1149, 18011), (1743, 11873), (2573, 8043), (2681, 7719)]