213202857

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11369}}^1$

素因数の和:11445

約数の個数: 32

約数和(自身を含む): 349286400

約数和(自身を除く): 136083543

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 2679, 6251, 11369, 18753, 34107, 79583, 216011, 238749, 534343, 648033, 1512077, 1603029, 3740401, 4536231, 10152517, 11221203, 30457551, 71067619, 213202857]

約数ペア:

[(1, 213202857), (3, 71067619), (7, 30457551), (19, 11221203), (21, 10152517), (47, 4536231), (57, 3740401), (133, 1603029), (141, 1512077), (329, 648033), (399, 534343), (893, 238749), (987, 216011), (2679, 79583), (6251, 34107), (11369, 18753)]