21535311

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{337}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 35043840

約数和(自身を除く): 13508529

約数列:

[1, 3, 7, 17, 21, 51, 119, 179, 337, 357, 537, 1011, 1253, 2359, 3043, 3759, 5729, 7077, 9129, 17187, 21301, 40103, 60323, 63903, 120309, 180969, 422261, 1025491, 1266783, 3076473, 7178437, 21535311]

約数ペア:

[(1, 21535311), (3, 7178437), (7, 3076473), (17, 1266783), (21, 1025491), (51, 422261), (119, 180969), (179, 120309), (337, 63903), (357, 60323), (537, 40103), (1011, 21301), (1253, 17187), (2359, 9129), (3043, 7077), (3759, 5729)]