21378422

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1873}}^1$

素因数の和:2327

約数の個数: 16

約数和(自身を含む): 34631520

約数和(自身を除く): 13253098

約数列:

[1, 2, 13, 26, 439, 878, 1873, 3746, 5707, 11414, 24349, 48698, 822247, 1644494, 10689211, 21378422]

約数ペア:

[(1, 21378422), (2, 10689211), (13, 1644494), (26, 822247), (439, 48698), (878, 24349), (1873, 11414), (3746, 5707)]