18946208

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 39191040

約数和(自身を除く): 20244832

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 71, 124, 142, 248, 269, 284, 496, 538, 568, 992, 1076, 1136, 2152, 2201, 2272, 4304, 4402, 8339, 8608, 8804, 16678, 17608, 19099, 33356, 35216, 38198, 66712, 70432, 76396, 133424, 152792, 266848, 305584, 592069, 611168, 1184138, 2368276, 4736552, 9473104, 18946208]

約数ペア:

[(1, 18946208), (2, 9473104), (4, 4736552), (8, 2368276), (16, 1184138), (31, 611168), (32, 592069), (62, 305584), (71, 266848), (124, 152792), (142, 133424), (248, 76396), (269, 70432), (284, 66712), (496, 38198), (538, 35216), (568, 33356), (992, 19099), (1076, 17608), (1136, 16678), (2152, 8804), (2201, 8608), (2272, 8339), (4304, 4402)]