19488357

素因数分解:

$3^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:114

約数の個数: 64

約数和(自身を含む): 35686400

約数和(自身を除く): 16198043

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 67, 81, 133, 171, 189, 201, 243, 399, 469, 513, 567, 603, 729, 1197, 1273, 1407, 1539, 1701, 1809, 2187, 3591, 3819, 4221, 4617, 5103, 5427, 8911, 10773, 11457, 12663, 13851, 15309, 16281, 26733, 32319, 34371, 37989, 41553, 48843, 80199, 96957, 103113, 113967, 146529, 240597, 290871, 309339, 341901, 721791, 928017, 1025703, 2165373, 2784051, 6496119, 19488357]

約数ペア:

[(1, 19488357), (3, 6496119), (7, 2784051), (9, 2165373), (19, 1025703), (21, 928017), (27, 721791), (57, 341901), (63, 309339), (67, 290871), (81, 240597), (133, 146529), (171, 113967), (189, 103113), (201, 96957), (243, 80199), (399, 48843), (469, 41553), (513, 37989), (567, 34371), (603, 32319), (729, 26733), (1197, 16281), (1273, 15309), (1407, 13851), (1539, 12663), (1701, 11457), (1809, 10773), (2187, 8911), (3591, 5427), (3819, 5103), (4221, 4617)]