201993921

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 321834240

約数和(自身を除く): 119840319

約数列:

[1, 3, 9, 19, 41, 47, 57, 123, 141, 171, 369, 423, 613, 779, 893, 1839, 1927, 2337, 2679, 5517, 5781, 7011, 8037, 11647, 17343, 25133, 28811, 34941, 36613, 75399, 86433, 104823, 109839, 226197, 259299, 329517, 477527, 547409, 1181251, 1432581, 1642227, 3543753, 4297743, 4926681, 10631259, 22443769, 67331307, 201993921]

約数ペア:

[(1, 201993921), (3, 67331307), (9, 22443769), (19, 10631259), (41, 4926681), (47, 4297743), (57, 3543753), (123, 1642227), (141, 1432581), (171, 1181251), (369, 547409), (423, 477527), (613, 329517), (779, 259299), (893, 226197), (1839, 109839), (1927, 104823), (2337, 86433), (2679, 75399), (5517, 36613), (5781, 34941), (7011, 28811), (8037, 25133), (11647, 17343)]