18156937185

素因数分解:

$3^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{637421}}^1$

素因数の和:637646

約数の個数: 32

約数和(自身を含む): 32432031360

約数和(自身を除く): 14275094175

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 211, 633, 1055, 1899, 3165, 5697, 9495, 28485, 637421, 1912263, 3187105, 5736789, 9561315, 17210367, 28683945, 86051835, 134495831, 403487493, 672479155, 1210462479, 2017437465, 3631387437, 6052312395, 18156937185]

約数ペア:

[(1, 18156937185), (3, 6052312395), (5, 3631387437), (9, 2017437465), (15, 1210462479), (27, 672479155), (45, 403487493), (135, 134495831), (211, 86051835), (633, 28683945), (1055, 17210367), (1899, 9561315), (3165, 5736789), (5697, 3187105), (9495, 1912263), (28485, 637421)]