21504375

素因数分解:

$3^2\times 5^4\times {\mathrm{3823}}^1$

素因数の和:3849

約数の個数: 30

約数和(自身を含む): 38825072

約数和(自身を除く): 17320697

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3823, 5625, 11469, 19115, 34407, 57345, 95575, 172035, 286725, 477875, 860175, 1433625, 2389375, 4300875, 7168125, 21504375]

約数ペア:

[(1, 21504375), (3, 7168125), (5, 4300875), (9, 2389375), (15, 1433625), (25, 860175), (45, 477875), (75, 286725), (125, 172035), (225, 95575), (375, 57345), (625, 34407), (1125, 19115), (1875, 11469), (3823, 5625)]