21350931009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{27059}}^1$

素因数の和:27317

約数の個数: 32

約数和(自身を含む): 30480384000

約数和(自身を除く): 9129452991

約数列:

[1, 3, 19, 57, 109, 127, 327, 381, 2071, 2413, 6213, 7239, 13843, 27059, 41529, 81177, 263017, 514121, 789051, 1542363, 2949431, 3436493, 8848293, 10309479, 56039189, 65293367, 168117567, 195880101, 374577737, 1123733211, 7116977003, 21350931009]

約数ペア:

[(1, 21350931009), (3, 7116977003), (19, 1123733211), (57, 374577737), (109, 195880101), (127, 168117567), (327, 65293367), (381, 56039189), (2071, 10309479), (2413, 8848293), (6213, 3436493), (7239, 2949431), (13843, 1542363), (27059, 789051), (41529, 514121), (81177, 263017)]