18869925

素因数分解:

$3^1\times 5^2\times {\mathrm{311}}^1\times {\mathrm{809}}^1$

素因数の和:1133

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 12467355

約数列:

[1, 3, 5, 15, 25, 75, 311, 809, 933, 1555, 2427, 4045, 4665, 7775, 12135, 20225, 23325, 60675, 251599, 754797, 1257995, 3773985, 6289975, 18869925]

約数ペア:

[(1, 18869925), (3, 6289975), (5, 3773985), (15, 1257995), (25, 754797), (75, 251599), (311, 60675), (809, 23325), (933, 20225), (1555, 12135), (2427, 7775), (4045, 4665)]