21154125

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2969}}^1$

素因数の和:3006

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 15911475

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 125, 285, 375, 475, 1425, 2375, 2969, 7125, 8907, 14845, 44535, 56411, 74225, 169233, 222675, 282055, 371125, 846165, 1113375, 1410275, 4230825, 7051375, 21154125]

約数ペア:

[(1, 21154125), (3, 7051375), (5, 4230825), (15, 1410275), (19, 1113375), (25, 846165), (57, 371125), (75, 282055), (95, 222675), (125, 169233), (285, 74225), (375, 56411), (475, 44535), (1425, 14845), (2375, 8907), (2969, 7125)]