21706190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17939}}^1$

素因数の和:17968

約数の個数: 24

約数和(自身を含む): 42948360

約数和(自身を除く): 21242170

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17939, 35878, 89695, 179390, 197329, 394658, 986645, 1973290, 2170619, 4341238, 10853095, 21706190]

約数ペア:

[(1, 21706190), (2, 10853095), (5, 4341238), (10, 2170619), (11, 1973290), (22, 986645), (55, 394658), (110, 197329), (121, 179390), (242, 89695), (605, 35878), (1210, 17939)]