21338076

素因数分解:

$2^2\times 3^1\times {\mathrm{521}}^1\times {\mathrm{3413}}^1$

素因数の和:3941

約数の個数: 24

約数和(自身を含む): 49899024

約数和(自身を除く): 28560948

約数列:

[1, 2, 3, 4, 6, 12, 521, 1042, 1563, 2084, 3126, 3413, 6252, 6826, 10239, 13652, 20478, 40956, 1778173, 3556346, 5334519, 7112692, 10669038, 21338076]

約数ペア:

[(1, 21338076), (2, 10669038), (3, 7112692), (4, 5334519), (6, 3556346), (12, 1778173), (521, 40956), (1042, 20478), (1563, 13652), (2084, 10239), (3126, 6826), (3413, 6252)]