15321201

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 25749504

約数和(自身を除く): 10428303

約数列:

[1, 3, 7, 19, 21, 43, 47, 57, 129, 133, 141, 301, 329, 361, 399, 817, 893, 903, 987, 1083, 2021, 2451, 2527, 2679, 5719, 6063, 6251, 7581, 14147, 15523, 16967, 17157, 18753, 38399, 42441, 46569, 50901, 108661, 115197, 118769, 268793, 325983, 356307, 729581, 806379, 2188743, 5107067, 15321201]

約数ペア:

[(1, 15321201), (3, 5107067), (7, 2188743), (19, 806379), (21, 729581), (43, 356307), (47, 325983), (57, 268793), (129, 118769), (133, 115197), (141, 108661), (301, 50901), (329, 46569), (361, 42441), (399, 38399), (817, 18753), (893, 17157), (903, 16967), (987, 15523), (1083, 14147), (2021, 7581), (2451, 6251), (2527, 6063), (2679, 5719)]