19840155

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42667}}^1$

素因数の和:42706

約数の個数: 16

約数和(自身を含む): 32769024

約数和(自身を除く): 12928869

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 42667, 128001, 213335, 640005, 1322677, 3968031, 6613385, 19840155]

約数ペア:

[(1, 19840155), (3, 6613385), (5, 3968031), (15, 1322677), (31, 640005), (93, 213335), (155, 128001), (465, 42667)]