81990218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{12241}}^1$

素因数の和:12457

約数の個数: 16

約数和(自身を含む): 130891464

約数和(自身を除く): 48901246

約数列:

[1, 2, 17, 34, 197, 394, 3349, 6698, 12241, 24482, 208097, 416194, 2411477, 4822954, 40995109, 81990218]

約数ペア:

[(1, 81990218), (2, 40995109), (17, 4822954), (34, 2411477), (197, 416194), (394, 208097), (3349, 24482), (6698, 12241)]