21497788143

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{4691}}^1$

素因数の和:4877

約数の個数: 72

約数和(自身を含む): 35362065024

約数和(自身を除く): 13864276881

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 131, 169, 207, 299, 393, 507, 897, 1179, 1521, 1703, 2691, 3013, 3887, 4691, 5109, 9039, 11661, 14073, 15327, 22139, 27117, 34983, 39169, 42219, 60983, 66417, 107893, 117507, 182949, 199251, 323679, 352521, 509197, 548847, 614521, 792779, 971037, 1402609, 1527591, 1843563, 2378337, 4207827, 4582773, 5530689, 7135011, 7988773, 12623481, 14133983, 18233917, 23966319, 42401949, 54701751, 71898957, 103854049, 127205847, 164105253, 183741779, 311562147, 551225337, 934686441, 1653676011, 2388643127, 7165929381, 21497788143]

約数ペア:

[(1, 21497788143), (3, 7165929381), (9, 2388643127), (13, 1653676011), (23, 934686441), (39, 551225337), (69, 311562147), (117, 183741779), (131, 164105253), (169, 127205847), (207, 103854049), (299, 71898957), (393, 54701751), (507, 42401949), (897, 23966319), (1179, 18233917), (1521, 14133983), (1703, 12623481), (2691, 7988773), (3013, 7135011), (3887, 5530689), (4691, 4582773), (5109, 4207827), (9039, 2378337), (11661, 1843563), (14073, 1527591), (15327, 1402609), (22139, 971037), (27117, 792779), (34983, 614521), (39169, 548847), (42219, 509197), (60983, 352521), (66417, 323679), (107893, 199251), (117507, 182949)]