21081250

素因数分解:

$2^1\times 5^5\times {\mathrm{3373}}^1$

素因数の和:3400

約数の個数: 24

約数和(自身を含む): 39536532

約数和(自身を除く): 18455282

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 3125, 3373, 6250, 6746, 16865, 33730, 84325, 168650, 421625, 843250, 2108125, 4216250, 10540625, 21081250]

約数ペア:

[(1, 21081250), (2, 10540625), (5, 4216250), (10, 2108125), (25, 843250), (50, 421625), (125, 168650), (250, 84325), (625, 33730), (1250, 16865), (3125, 6746), (3373, 6250)]