19810052

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{607}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 35750400

約数和(自身を除く): 15940348

約数列:

[1, 2, 4, 41, 82, 164, 199, 398, 607, 796, 1214, 2428, 8159, 16318, 24887, 32636, 49774, 99548, 120793, 241586, 483172, 4952513, 9905026, 19810052]

約数ペア:

[(1, 19810052), (2, 9905026), (4, 4952513), (41, 483172), (82, 241586), (164, 120793), (199, 99548), (398, 49774), (607, 32636), (796, 24887), (1214, 16318), (2428, 8159)]