21184125

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3323}}^1$

素因数の和:3358

約数の個数: 32

約数和(自身を含む): 37335168

約数和(自身を除く): 16151043

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3323, 6375, 9969, 16615, 49845, 56491, 83075, 169473, 249225, 282455, 415375, 847365, 1246125, 1412275, 4236825, 7061375, 21184125]

約数ペア:

[(1, 21184125), (3, 7061375), (5, 4236825), (15, 1412275), (17, 1246125), (25, 847365), (51, 415375), (75, 282455), (85, 249225), (125, 169473), (255, 83075), (375, 56491), (425, 49845), (1275, 16615), (2125, 9969), (3323, 6375)]