201002221

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 248168448

約数和(自身を除く): 47166227

約数列:

[1, 7, 23, 47, 101, 161, 263, 329, 707, 1081, 1841, 2323, 4747, 6049, 7567, 12361, 16261, 26563, 33229, 42343, 86527, 109181, 185941, 284303, 610949, 764267, 1248461, 1990121, 4276643, 8739227, 28714603, 201002221]

約数ペア:

[(1, 201002221), (7, 28714603), (23, 8739227), (47, 4276643), (101, 1990121), (161, 1248461), (263, 764267), (329, 610949), (707, 284303), (1081, 185941), (1841, 109181), (2323, 86527), (4747, 42343), (6049, 33229), (7567, 26563), (12361, 16261)]