19806759

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16547}}^1$

素因数の和:16579

約数の個数: 24

約数和(自身を含む): 34419840

約数和(自身を除く): 14613081

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16547, 49641, 115829, 148923, 314393, 347487, 943179, 1042461, 2200751, 2829537, 6602253, 19806759]

約数ペア:

[(1, 19806759), (3, 6602253), (7, 2829537), (9, 2200751), (19, 1042461), (21, 943179), (57, 347487), (63, 314393), (133, 148923), (171, 115829), (399, 49641), (1197, 16547)]