19872117

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 9780363

約数列:

[1, 3, 9, 47, 109, 141, 327, 423, 431, 981, 1293, 3879, 5123, 15369, 20257, 46107, 46979, 60771, 140937, 182313, 422811, 2208013, 6624039, 19872117]

約数ペア:

[(1, 19872117), (3, 6624039), (9, 2208013), (47, 422811), (109, 182313), (141, 140937), (327, 60771), (423, 46979), (431, 46107), (981, 20257), (1293, 15369), (3879, 5123)]