19989969

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1867}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 27616512

約数和(自身を除く): 7626543

約数列:

[1, 3, 43, 83, 129, 249, 1867, 3569, 5601, 10707, 80281, 154961, 240843, 464883, 6663323, 19989969]

約数ペア:

[(1, 19989969), (3, 6663323), (43, 464883), (83, 240843), (129, 154961), (249, 80281), (1867, 10707), (3569, 5601)]