21295850

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4217}}^1$

素因数の和:4330

約数の個数: 24

約数和(自身を含む): 40011948

約数和(自身を除く): 18716098

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4217, 5050, 8434, 21085, 42170, 105425, 210850, 425917, 851834, 2129585, 4259170, 10647925, 21295850]

約数ペア:

[(1, 21295850), (2, 10647925), (5, 4259170), (10, 2129585), (25, 851834), (50, 425917), (101, 210850), (202, 105425), (505, 42170), (1010, 21085), (2525, 8434), (4217, 5050)]