16180965

素因数分解:

$3^4\times 5^1\times {\mathrm{39953}}^1$

素因数の和:39970

約数の個数: 20

約数和(自身を含む): 29006604

約数和(自身を除く): 12825639

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 39953, 119859, 199765, 359577, 599295, 1078731, 1797885, 3236193, 5393655, 16180965]

約数ペア:

[(1, 16180965), (3, 5393655), (5, 3236193), (9, 1797885), (15, 1078731), (27, 599295), (45, 359577), (81, 199765), (135, 119859), (405, 39953)]