21901900

素因数分解:

$2^2\times 5^2\times {\mathrm{219019}}^1$

素因数の和:219033

約数の個数: 18

約数和(自身を含む): 47527340

約数和(自身を除く): 25625440

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 219019, 438038, 876076, 1095095, 2190190, 4380380, 5475475, 10950950, 21901900]

約数ペア:

[(1, 21901900), (2, 10950950), (4, 5475475), (5, 4380380), (10, 2190190), (20, 1095095), (25, 876076), (50, 438038), (100, 219019)]