19990712

素因数分解:

$2^3\times 7^1\times {\mathrm{356977}}^1$

素因数の和:356990

約数の個数: 16

約数和(自身を含む): 42837360

約数和(自身を除く): 22846648

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 356977, 713954, 1427908, 2498839, 2855816, 4997678, 9995356, 19990712]

約数ペア:

[(1, 19990712), (2, 9995356), (4, 4997678), (7, 2855816), (8, 2498839), (14, 1427908), (28, 713954), (56, 356977)]