28493157

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 49116672

約数和(自身を除く): 20623515

約数列:

[1, 3, 7, 11, 21, 33, 49, 67, 77, 147, 201, 231, 263, 469, 539, 737, 789, 1407, 1617, 1841, 2211, 2893, 3283, 5159, 5523, 8679, 9849, 12887, 15477, 17621, 20251, 36113, 38661, 52863, 60753, 108339, 123347, 141757, 193831, 370041, 425271, 581493, 863429, 1356817, 2590287, 4070451, 9497719, 28493157]

約数ペア:

[(1, 28493157), (3, 9497719), (7, 4070451), (11, 2590287), (21, 1356817), (33, 863429), (49, 581493), (67, 425271), (77, 370041), (147, 193831), (201, 141757), (231, 123347), (263, 108339), (469, 60753), (539, 52863), (737, 38661), (789, 36113), (1407, 20251), (1617, 17621), (1841, 15477), (2211, 12887), (2893, 9849), (3283, 8679), (5159, 5523)]