20012385

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{12953}}^1$

素因数の和:13064

約数の個数: 16

約数和(自身を含む): 32333184

約数和(自身を除く): 12320799

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 12953, 38859, 64765, 194295, 1334159, 4002477, 6670795, 20012385]

約数ペア:

[(1, 20012385), (3, 6670795), (5, 4002477), (15, 1334159), (103, 194295), (309, 64765), (515, 38859), (1545, 12953)]