21460840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23327}}^1$

素因数の和:23361

約数の個数: 32

約数和(自身を含む): 50388480

約数和(自身を除く): 28927640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23327, 46654, 93308, 116635, 186616, 233270, 466540, 536521, 933080, 1073042, 2146084, 2682605, 4292168, 5365210, 10730420, 21460840]

約数ペア:

[(1, 21460840), (2, 10730420), (4, 5365210), (5, 4292168), (8, 2682605), (10, 2146084), (20, 1073042), (23, 933080), (40, 536521), (46, 466540), (92, 233270), (115, 186616), (184, 116635), (230, 93308), (460, 46654), (920, 23327)]