28687986

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{27961}}^1$

素因数の和:27991

約数の個数: 32

約数和(自身を含む): 67108800

約数和(自身を除く): 38420814

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 27961, 55922, 83883, 167766, 251649, 503298, 531259, 754947, 1062518, 1509894, 1593777, 3187554, 4781331, 9562662, 14343993, 28687986]

約数ペア:

[(1, 28687986), (2, 14343993), (3, 9562662), (6, 4781331), (9, 3187554), (18, 1593777), (19, 1509894), (27, 1062518), (38, 754947), (54, 531259), (57, 503298), (114, 251649), (171, 167766), (342, 83883), (513, 55922), (1026, 27961)]