15721966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 26621280

約数和(自身を除く): 10899314

約数列:

[1, 2, 13, 26, 37, 59, 74, 118, 277, 481, 554, 767, 962, 1534, 2183, 3601, 4366, 7202, 10249, 16343, 20498, 28379, 32686, 56758, 133237, 212459, 266474, 424918, 604691, 1209382, 7860983, 15721966]

約数ペア:

[(1, 15721966), (2, 7860983), (13, 1209382), (26, 604691), (37, 424918), (59, 266474), (74, 212459), (118, 133237), (277, 56758), (481, 32686), (554, 28379), (767, 20498), (962, 16343), (1534, 10249), (2183, 7202), (3601, 4366)]