19310512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 40559904

約数和(自身を除く): 21249392

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 263, 353, 526, 706, 1052, 1412, 2104, 2824, 3419, 4208, 4589, 5648, 6838, 9178, 13676, 18356, 27352, 36712, 54704, 73424, 92839, 185678, 371356, 742712, 1206907, 1485424, 2413814, 4827628, 9655256, 19310512]

約数ペア:

[(1, 19310512), (2, 9655256), (4, 4827628), (8, 2413814), (13, 1485424), (16, 1206907), (26, 742712), (52, 371356), (104, 185678), (208, 92839), (263, 73424), (353, 54704), (526, 36712), (706, 27352), (1052, 18356), (1412, 13676), (2104, 9178), (2824, 6838), (3419, 5648), (4208, 4589)]