19737151

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 24361344

約数和(自身を除く): 4624193

約数列:

[1, 7, 23, 49, 83, 161, 211, 581, 1127, 1477, 1909, 4067, 4853, 10339, 13363, 17513, 33971, 93541, 122591, 237797, 402799, 858137, 2819593, 19737151]

約数ペア:

[(1, 19737151), (7, 2819593), (23, 858137), (49, 402799), (83, 237797), (161, 122591), (211, 93541), (581, 33971), (1127, 17513), (1477, 13363), (1909, 10339), (4067, 4853)]