39991371

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1373}}^1$

素因数の和:1475

約数の個数: 32

約数和(自身を含む): 65072640

約数和(自身を除く): 25081269

約数列:

[1, 3, 7, 19, 21, 57, 73, 133, 219, 399, 511, 1373, 1387, 1533, 4119, 4161, 9611, 9709, 26087, 28833, 29127, 78261, 100229, 182609, 300687, 547827, 701603, 1904351, 2104809, 5713053, 13330457, 39991371]

約数ペア:

[(1, 39991371), (3, 13330457), (7, 5713053), (19, 2104809), (21, 1904351), (57, 701603), (73, 547827), (133, 300687), (219, 182609), (399, 100229), (511, 78261), (1373, 29127), (1387, 28833), (1533, 26087), (4119, 9709), (4161, 9611)]