28078638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{668539}}^1$

素因数の和:668551

約数の個数: 16

約数和(自身を含む): 64179840

約数和(自身を除く): 36101202

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 668539, 1337078, 2005617, 4011234, 4679773, 9359546, 14039319, 28078638]

約数ペア:

[(1, 28078638), (2, 14039319), (3, 9359546), (6, 4679773), (7, 4011234), (14, 2005617), (21, 1337078), (42, 668539)]