19187511

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2531}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 30870144

約数和(自身を除く): 11682633

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 2531, 7581, 7593, 17717, 48089, 53151, 144267, 336623, 913691, 1009869, 2741073, 6395837, 19187511]

約数ペア:

[(1, 19187511), (3, 6395837), (7, 2741073), (19, 1009869), (21, 913691), (57, 336623), (133, 144267), (361, 53151), (399, 48089), (1083, 17717), (2527, 7593), (2531, 7581)]