21159844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{643}}^1$

素因数の和:1099

約数の個数: 24

約数和(自身を含む): 39129440

約数和(自身を除く): 17969596

約数列:

[1, 2, 4, 19, 38, 76, 433, 643, 866, 1286, 1732, 2572, 8227, 12217, 16454, 24434, 32908, 48868, 278419, 556838, 1113676, 5289961, 10579922, 21159844]

約数ペア:

[(1, 21159844), (2, 10579922), (4, 5289961), (19, 1113676), (38, 556838), (76, 278419), (433, 48868), (643, 32908), (866, 24434), (1286, 16454), (1732, 12217), (2572, 8227)]