19936858

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1101

約数の個数: 16

約数和(自身を含む): 30834720

約数和(自身を除く): 10897862

約数列:

[1, 2, 37, 74, 419, 643, 838, 1286, 15503, 23791, 31006, 47582, 269417, 538834, 9968429, 19936858]

約数ペア:

[(1, 19936858), (2, 9968429), (37, 538834), (74, 269417), (419, 47582), (643, 31006), (838, 23791), (1286, 15503)]