21749108

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:599

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17058892

約数列:

[1, 2, 4, 89, 178, 199, 307, 356, 398, 614, 796, 1228, 17711, 27323, 35422, 54646, 61093, 70844, 109292, 122186, 244372, 5437277, 10874554, 21749108]

約数ペア:

[(1, 21749108), (2, 10874554), (4, 5437277), (89, 244372), (178, 122186), (199, 109292), (307, 70844), (356, 61093), (398, 54646), (614, 35422), (796, 27323), (1228, 17711)]