19571805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2081}}^1$

素因数の和:2122

約数の個数: 48

約数和(自身を含む): 38975040

約数和(自身を除く): 19403235

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2081, 3135, 6243, 9405, 10405, 18729, 22891, 31215, 39539, 68673, 93645, 114455, 118617, 197695, 206019, 343365, 355851, 434929, 593085, 1030095, 1304787, 1779255, 2174645, 3914361, 6523935, 19571805]

約数ペア:

[(1, 19571805), (3, 6523935), (5, 3914361), (9, 2174645), (11, 1779255), (15, 1304787), (19, 1030095), (33, 593085), (45, 434929), (55, 355851), (57, 343365), (95, 206019), (99, 197695), (165, 118617), (171, 114455), (209, 93645), (285, 68673), (495, 39539), (627, 31215), (855, 22891), (1045, 18729), (1881, 10405), (2081, 9405), (3135, 6243)]