21408022

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:388

約数の個数: 24

約数和(自身を含む): 34290000

約数和(自身を除く): 12881978

約数列:

[1, 2, 19, 38, 149, 199, 298, 361, 398, 722, 2831, 3781, 5662, 7562, 29651, 53789, 59302, 71839, 107578, 143678, 563369, 1126738, 10704011, 21408022]

約数ペア:

[(1, 21408022), (2, 10704011), (19, 1126738), (38, 563369), (149, 143678), (199, 107578), (298, 71839), (361, 59302), (398, 53789), (722, 29651), (2831, 7562), (3781, 5662)]