21760053

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 34406400

約数和(自身を除く): 12646347

約数列:

[1, 3, 7, 21, 41, 123, 127, 199, 287, 381, 597, 861, 889, 1393, 2667, 4179, 5207, 8159, 15621, 24477, 25273, 36449, 57113, 75819, 109347, 171339, 176911, 530733, 1036193, 3108579, 7253351, 21760053]

約数ペア:

[(1, 21760053), (3, 7253351), (7, 3108579), (21, 1036193), (41, 530733), (123, 176911), (127, 171339), (199, 109347), (287, 75819), (381, 57113), (597, 36449), (861, 25273), (889, 24477), (1393, 15621), (2667, 8159), (4179, 5207)]