21419468

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1061}}^1$

素因数の和:1182

約数の個数: 36

約数和(自身を含む): 44068752

約数和(自身を除く): 22649284

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 1061, 1442, 2122, 2884, 4244, 5047, 7427, 10094, 14854, 20188, 29708, 51989, 103978, 109283, 207956, 218566, 437132, 764981, 1529962, 3059924, 5354867, 10709734, 21419468]

約数ペア:

[(1, 21419468), (2, 10709734), (4, 5354867), (7, 3059924), (14, 1529962), (28, 764981), (49, 437132), (98, 218566), (103, 207956), (196, 109283), (206, 103978), (412, 51989), (721, 29708), (1061, 20188), (1442, 14854), (2122, 10094), (2884, 7427), (4244, 5047)]