28193778

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 65445120

約数和(自身を除く): 37251342

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 103, 111, 137, 206, 222, 274, 309, 333, 411, 618, 666, 822, 927, 999, 1233, 1854, 1998, 2466, 2781, 3699, 3811, 5069, 5562, 7398, 7622, 10138, 11433, 14111, 15207, 22866, 28222, 30414, 34299, 42333, 45621, 68598, 84666, 91242, 102897, 126999, 136863, 205794, 253998, 273726, 380997, 522107, 761994, 1044214, 1566321, 3132642, 4698963, 9397926, 14096889, 28193778]

約数ペア:

[(1, 28193778), (2, 14096889), (3, 9397926), (6, 4698963), (9, 3132642), (18, 1566321), (27, 1044214), (37, 761994), (54, 522107), (74, 380997), (103, 273726), (111, 253998), (137, 205794), (206, 136863), (222, 126999), (274, 102897), (309, 91242), (333, 84666), (411, 68598), (618, 45621), (666, 42333), (822, 34299), (927, 30414), (999, 28222), (1233, 22866), (1854, 15207), (1998, 14111), (2466, 11433), (2781, 10138), (3699, 7622), (3811, 7398), (5069, 5562)]