2105925

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 3568224

約数和(自身を除く): 1462299

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 653, 1075, 1959, 3225, 3265, 9795, 16325, 28079, 48975, 84237, 140395, 421185, 701975, 2105925]

約数ペア:

[(1, 2105925), (3, 701975), (5, 421185), (15, 140395), (25, 84237), (43, 48975), (75, 28079), (129, 16325), (215, 9795), (645, 3265), (653, 3225), (1075, 1959)]