21367390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17659}}^1$

素因数の和:17688

約数の個数: 24

約数和(自身を含む): 42278040

約数和(自身を除く): 20910650

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17659, 35318, 88295, 176590, 194249, 388498, 971245, 1942490, 2136739, 4273478, 10683695, 21367390]

約数ペア:

[(1, 21367390), (2, 10683695), (5, 4273478), (10, 2136739), (11, 1942490), (22, 971245), (55, 388498), (110, 194249), (121, 176590), (242, 88295), (605, 35318), (1210, 17659)]