21992140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47809}}^1$

素因数の和:47841

約数の個数: 24

約数和(自身を含む): 48192480

約数和(自身を除く): 26200340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47809, 95618, 191236, 239045, 478090, 956180, 1099607, 2199214, 4398428, 5498035, 10996070, 21992140]

約数ペア:

[(1, 21992140), (2, 10996070), (4, 5498035), (5, 4398428), (10, 2199214), (20, 1099607), (23, 956180), (46, 478090), (92, 239045), (115, 191236), (230, 95618), (460, 47809)]