20987582

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19469}}^1$

素因数の和:19496

約数の個数: 24

約数和(自身を含む): 39952440

約数和(自身を除く): 18964858

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19469, 38938, 136283, 214159, 272566, 428318, 953981, 1499113, 1907962, 2998226, 10493791, 20987582]

約数ペア:

[(1, 20987582), (2, 10493791), (7, 2998226), (11, 1907962), (14, 1499113), (22, 953981), (49, 428318), (77, 272566), (98, 214159), (154, 136283), (539, 38938), (1078, 19469)]