12878685

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2089}}^1$

素因数の和:2237

約数の個数: 24

約数和(自身を含む): 22496760

約数和(自身を除く): 9618075

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 2089, 6165, 6267, 10445, 18801, 31335, 94005, 286193, 858579, 1430965, 2575737, 4292895, 12878685]

約数ペア:

[(1, 12878685), (3, 4292895), (5, 2575737), (9, 1430965), (15, 858579), (45, 286193), (137, 94005), (411, 31335), (685, 18801), (1233, 10445), (2055, 6267), (2089, 6165)]