21244573

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 24955776

約数和(自身を除く): 3711203

約数列:

[1, 7, 53, 173, 331, 371, 1211, 2317, 9169, 17543, 57263, 64183, 122801, 400841, 3034939, 21244573]

約数ペア:

[(1, 21244573), (7, 3034939), (53, 400841), (173, 122801), (331, 64183), (371, 57263), (1211, 17543), (2317, 9169)]