21000358

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3709}}^1$

素因数の和:3879

約数の個数: 16

約数和(自身を含む): 33390000

約数和(自身を除く): 12389642

約数列:

[1, 2, 19, 38, 149, 298, 2831, 3709, 5662, 7418, 70471, 140942, 552641, 1105282, 10500179, 21000358]

約数ペア:

[(1, 21000358), (2, 10500179), (19, 1105282), (38, 552641), (149, 140942), (298, 70471), (2831, 7418), (3709, 5662)]