21199574

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15797}}^1$

素因数の和:15871

約数の個数: 16

約数和(自身を含む): 35261136

約数和(自身を除く): 14061562

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15797, 31594, 173767, 347534, 963617, 1927234, 10599787, 21199574]

約数ペア:

[(1, 21199574), (2, 10599787), (11, 1927234), (22, 963617), (61, 347534), (122, 173767), (671, 31594), (1342, 15797)]