21362125

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:198

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 6942515

約数列:

[1, 5, 25, 29, 71, 83, 125, 145, 355, 415, 725, 1775, 2059, 2075, 2407, 3625, 5893, 8875, 10295, 10375, 12035, 29465, 51475, 60175, 147325, 170897, 257375, 300875, 736625, 854485, 4272425, 21362125]

約数ペア:

[(1, 21362125), (5, 4272425), (25, 854485), (29, 736625), (71, 300875), (83, 257375), (125, 170897), (145, 147325), (355, 60175), (415, 51475), (725, 29465), (1775, 12035), (2059, 10375), (2075, 10295), (2407, 8875), (3625, 5893)]