258707979

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 408777600

約数和(自身を除く): 150069621

約数列:

[1, 3, 9, 23, 27, 59, 69, 177, 207, 307, 529, 531, 621, 921, 1357, 1587, 1593, 2763, 4071, 4761, 7061, 8289, 12213, 14283, 18113, 21183, 31211, 36639, 54339, 63549, 93633, 162403, 163017, 190647, 280899, 416599, 487209, 489051, 842697, 1249797, 1461627, 3749391, 4384881, 9581777, 11248173, 28745331, 86235993, 258707979]

約数ペア:

[(1, 258707979), (3, 86235993), (9, 28745331), (23, 11248173), (27, 9581777), (59, 4384881), (69, 3749391), (177, 1461627), (207, 1249797), (307, 842697), (529, 489051), (531, 487209), (621, 416599), (921, 280899), (1357, 190647), (1587, 163017), (1593, 162403), (2763, 93633), (4071, 63549), (4761, 54339), (7061, 36639), (8289, 31211), (12213, 21183), (14283, 18113)]