1388219391

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{107}}^1$

素因数の和:212

約数の個数: 84

約数和(自身を含む): 2325230712

約数和(自身を除く): 937011321

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 107, 111, 117, 243, 321, 333, 351, 481, 729, 963, 999, 1053, 1369, 1391, 1443, 2889, 2997, 3159, 3959, 4107, 4173, 4329, 8667, 8991, 9477, 11877, 12321, 12519, 12987, 17797, 26001, 26973, 35631, 36963, 37557, 38961, 51467, 53391, 78003, 106893, 110889, 112671, 116883, 146483, 154401, 160173, 320679, 332667, 338013, 350649, 439449, 463203, 480519, 962037, 998001, 1014039, 1318347, 1389609, 1441557, 1904279, 2886111, 3955041, 4168827, 4324671, 5712837, 11865123, 12506481, 12974013, 17138511, 35595369, 37519443, 51415533, 106786107, 154246599, 462739797, 1388219391]

約数ペア:

[(1, 1388219391), (3, 462739797), (9, 154246599), (13, 106786107), (27, 51415533), (37, 37519443), (39, 35595369), (81, 17138511), (107, 12974013), (111, 12506481), (117, 11865123), (243, 5712837), (321, 4324671), (333, 4168827), (351, 3955041), (481, 2886111), (729, 1904279), (963, 1441557), (999, 1389609), (1053, 1318347), (1369, 1014039), (1391, 998001), (1443, 962037), (2889, 480519), (2997, 463203), (3159, 439449), (3959, 350649), (4107, 338013), (4173, 332667), (4329, 320679), (8667, 160173), (8991, 154401), (9477, 146483), (11877, 116883), (12321, 112671), (12519, 110889), (12987, 106893), (17797, 78003), (26001, 53391), (26973, 51467), (35631, 38961), (36963, 37557)]