21905734942

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1\times {\mathrm{4243}}^1$

素因数の和:5777

約数の個数: 64

約数和(自身を含む): 42608401920

約数和(自身を除く): 20702666978

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1493, 1729, 2986, 3458, 4243, 8486, 10451, 19409, 20902, 28367, 29701, 38818, 55159, 56734, 59402, 80617, 110318, 135863, 161234, 198569, 271726, 368771, 386113, 397138, 564319, 737542, 772226, 1048021, 1128638, 2096042, 2581397, 5162794, 6334799, 7336147, 12669598, 14672294, 44343593, 82352387, 88687186, 120361181, 164704774, 240722362, 576466709, 842528267, 1152933418, 1564695353, 1685056534, 3129390706, 10952867471, 21905734942]

約数ペア:

[(1, 21905734942), (2, 10952867471), (7, 3129390706), (13, 1685056534), (14, 1564695353), (19, 1152933418), (26, 842528267), (38, 576466709), (91, 240722362), (133, 164704774), (182, 120361181), (247, 88687186), (266, 82352387), (494, 44343593), (1493, 14672294), (1729, 12669598), (2986, 7336147), (3458, 6334799), (4243, 5162794), (8486, 2581397), (10451, 2096042), (19409, 1128638), (20902, 1048021), (28367, 772226), (29701, 737542), (38818, 564319), (55159, 397138), (56734, 386113), (59402, 368771), (80617, 271726), (110318, 198569), (135863, 161234)]