21230793

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 31943808

約数和(自身を除く): 10713015

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 947, 2491, 2841, 7473, 8523, 22419, 44509, 50191, 133527, 150573, 400581, 451719, 2358977, 7076931, 21230793]

約数ペア:

[(1, 21230793), (3, 7076931), (9, 2358977), (47, 451719), (53, 400581), (141, 150573), (159, 133527), (423, 50191), (477, 44509), (947, 22419), (2491, 8523), (2841, 7473)]