19898313

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{3863}}^1$

素因数の和:3984

約数の個数: 16

約数和(自身を含む): 28377216

約数和(自身を除く): 8478903

約数列:

[1, 3, 17, 51, 101, 303, 1717, 3863, 5151, 11589, 65671, 197013, 390163, 1170489, 6632771, 19898313]

約数ペア:

[(1, 19898313), (3, 6632771), (17, 1170489), (51, 390163), (101, 197013), (303, 65671), (1717, 11589), (3863, 5151)]