19902704

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2473}}^1$

素因数の和:2984

約数の個数: 20

約数和(自身を含む): 38653776

約数和(自身を除く): 18751072

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2473, 4024, 4946, 8048, 9892, 19784, 39568, 1243919, 2487838, 4975676, 9951352, 19902704]

約数ペア:

[(1, 19902704), (2, 9951352), (4, 4975676), (8, 2487838), (16, 1243919), (503, 39568), (1006, 19784), (2012, 9892), (2473, 8048), (4024, 4946)]