21228218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41953}}^1$

素因数の和:41989

約数の個数: 16

約数和(自身を含む): 36248256

約数和(自身を除く): 15020038

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41953, 83906, 461483, 922966, 964919, 1929838, 10614109, 21228218]

約数ペア:

[(1, 21228218), (2, 10614109), (11, 1929838), (22, 964919), (23, 922966), (46, 461483), (253, 83906), (506, 41953)]