21087887950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{469141}}^1$

素因数の和:469213

約数の個数: 48

約数和(自身を含む): 41884997760

約数和(自身を除く): 20797109810

約数列:

[1, 2, 5, 10, 25, 29, 31, 50, 58, 62, 145, 155, 290, 310, 725, 775, 899, 1450, 1550, 1798, 4495, 8990, 22475, 44950, 469141, 938282, 2345705, 4691410, 11728525, 13605089, 14543371, 23457050, 27210178, 29086742, 68025445, 72716855, 136050890, 145433710, 340127225, 363584275, 421757759, 680254450, 727168550, 843515518, 2108788795, 4217577590, 10543943975, 21087887950]

約数ペア:

[(1, 21087887950), (2, 10543943975), (5, 4217577590), (10, 2108788795), (25, 843515518), (29, 727168550), (31, 680254450), (50, 421757759), (58, 363584275), (62, 340127225), (145, 145433710), (155, 136050890), (290, 72716855), (310, 68025445), (725, 29086742), (775, 27210178), (899, 23457050), (1450, 14543371), (1550, 13605089), (1798, 11728525), (4495, 4691410), (8990, 2345705), (22475, 938282), (44950, 469141)]