21055672

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 24770888

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 101, 103, 184, 202, 206, 253, 404, 412, 506, 808, 824, 1012, 1111, 1133, 2024, 2222, 2266, 2323, 2369, 4444, 4532, 4646, 4738, 8888, 9064, 9292, 9476, 10403, 18584, 18952, 20806, 25553, 26059, 41612, 51106, 52118, 83224, 102212, 104236, 114433, 204424, 208472, 228866, 239269, 457732, 478538, 915464, 957076, 1914152, 2631959, 5263918, 10527836, 21055672]

約数ペア:

[(1, 21055672), (2, 10527836), (4, 5263918), (8, 2631959), (11, 1914152), (22, 957076), (23, 915464), (44, 478538), (46, 457732), (88, 239269), (92, 228866), (101, 208472), (103, 204424), (184, 114433), (202, 104236), (206, 102212), (253, 83224), (404, 52118), (412, 51106), (506, 41612), (808, 26059), (824, 25553), (1012, 20806), (1111, 18952), (1133, 18584), (2024, 10403), (2222, 9476), (2266, 9292), (2323, 9064), (2369, 8888), (4444, 4738), (4532, 4646)]