1999854927

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{863}}^1$

素因数の和:1010

約数の個数: 80

約数和(自身を含む): 3526060032

約数和(自身を除く): 1526205105

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 67, 81, 183, 189, 201, 427, 469, 549, 567, 603, 863, 1281, 1407, 1647, 1809, 2589, 3843, 4087, 4221, 4941, 5427, 6041, 7767, 11529, 12261, 12663, 18123, 23301, 28609, 34587, 36783, 37989, 52643, 54369, 57821, 69903, 85827, 110349, 157929, 163107, 173463, 257481, 331047, 368501, 404747, 473787, 489321, 520389, 772443, 1105503, 1214241, 1421361, 1561167, 2317329, 3316509, 3527081, 3642723, 4264083, 4683501, 9949527, 10581243, 10928169, 24689567, 29848581, 31743729, 32784507, 74068701, 95231187, 222206103, 285693561, 666618309, 1999854927]

約数ペア:

[(1, 1999854927), (3, 666618309), (7, 285693561), (9, 222206103), (21, 95231187), (27, 74068701), (61, 32784507), (63, 31743729), (67, 29848581), (81, 24689567), (183, 10928169), (189, 10581243), (201, 9949527), (427, 4683501), (469, 4264083), (549, 3642723), (567, 3527081), (603, 3316509), (863, 2317329), (1281, 1561167), (1407, 1421361), (1647, 1214241), (1809, 1105503), (2589, 772443), (3843, 520389), (4087, 489321), (4221, 473787), (4941, 404747), (5427, 368501), (6041, 331047), (7767, 257481), (11529, 173463), (12261, 163107), (12663, 157929), (18123, 110349), (23301, 85827), (28609, 69903), (34587, 57821), (36783, 54369), (37989, 52643)]