19408851

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4032

約数の個数: 36

約数和(自身を含む): 35585784

約数和(自身を除く): 16176933

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4001, 4851, 12003, 28007, 36009, 44011, 84021, 132033, 196049, 252063, 308077, 396099, 588147, 924231, 1764441, 2156539, 2772693, 6469617, 19408851]

約数ペア:

[(1, 19408851), (3, 6469617), (7, 2772693), (9, 2156539), (11, 1764441), (21, 924231), (33, 588147), (49, 396099), (63, 308077), (77, 252063), (99, 196049), (147, 132033), (231, 84021), (441, 44011), (539, 36009), (693, 28007), (1617, 12003), (4001, 4851)]