15555281

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 20064000

約数和(自身を除く): 4508719

約数列:

[1, 7, 19, 29, 37, 109, 133, 203, 259, 551, 703, 763, 1073, 2071, 3161, 3857, 4033, 4921, 7511, 14497, 20387, 22127, 28231, 60059, 76627, 116957, 142709, 420413, 536389, 818699, 2222183, 15555281]

約数ペア:

[(1, 15555281), (7, 2222183), (19, 818699), (29, 536389), (37, 420413), (109, 142709), (133, 116957), (203, 76627), (259, 60059), (551, 28231), (703, 22127), (763, 20387), (1073, 14497), (2071, 7511), (3161, 4921), (3857, 4033)]