21039632

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21557}}^1$

素因数の和:21626

約数の個数: 20

約数和(自身を含む): 41434476

約数和(自身を除く): 20394844

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21557, 43114, 86228, 172456, 344912, 1314977, 2629954, 5259908, 10519816, 21039632]

約数ペア:

[(1, 21039632), (2, 10519816), (4, 5259908), (8, 2629954), (16, 1314977), (61, 344912), (122, 172456), (244, 86228), (488, 43114), (976, 21557)]