25101981

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{7207}}^1$

素因数の和:7262

約数の個数: 20

約数和(自身を含む): 38375392

約数和(自身を除く): 13273411

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 7207, 21621, 64863, 194589, 309901, 583767, 929703, 2789109, 8367327, 25101981]

約数ペア:

[(1, 25101981), (3, 8367327), (9, 2789109), (27, 929703), (43, 583767), (81, 309901), (129, 194589), (387, 64863), (1161, 21621), (3483, 7207)]