209918876

素因数分解:

$2^2\times {\mathrm{331}}^2\times {\mathrm{479}}^1$

素因数の和:1145

約数の個数: 18

約数和(自身を含む): 369240480

約数和(自身を除く): 159321604

約数列:

[1, 2, 4, 331, 479, 662, 958, 1324, 1916, 109561, 158549, 219122, 317098, 438244, 634196, 52479719, 104959438, 209918876]

約数ペア:

[(1, 209918876), (2, 104959438), (4, 52479719), (331, 634196), (479, 438244), (662, 317098), (958, 219122), (1324, 158549), (1916, 109561)]