215501218

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1\times {\mathrm{3469}}^1$

素因数の和:3909

約数の個数: 16

約数和(自身を含む): 327915000

約数和(自身を除く): 112413782

約数列:

[1, 2, 89, 178, 349, 698, 3469, 6938, 31061, 62122, 308741, 617482, 1210681, 2421362, 107750609, 215501218]

約数ペア:

[(1, 215501218), (2, 107750609), (89, 2421362), (178, 1210681), (349, 617482), (698, 308741), (3469, 62122), (6938, 31061)]