21304850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2099}}^1$

素因数の和:2147

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 25567150

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 203, 290, 350, 406, 725, 1015, 1450, 2030, 2099, 4198, 5075, 10150, 10495, 14693, 20990, 29386, 52475, 60871, 73465, 104950, 121742, 146930, 304355, 367325, 426097, 608710, 734650, 852194, 1521775, 2130485, 3043550, 4260970, 10652425, 21304850]

約数ペア:

[(1, 21304850), (2, 10652425), (5, 4260970), (7, 3043550), (10, 2130485), (14, 1521775), (25, 852194), (29, 734650), (35, 608710), (50, 426097), (58, 367325), (70, 304355), (145, 146930), (175, 121742), (203, 104950), (290, 73465), (350, 60871), (406, 52475), (725, 29386), (1015, 20990), (1450, 14693), (2030, 10495), (2099, 10150), (4198, 5075)]