28142793

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4337}}^1$

素因数の和:4453

約数の個数: 24

約数和(自身を含む): 46919808

約数和(自身を除く): 18777015

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4337, 6489, 13011, 30359, 39033, 91077, 273231, 446711, 1340133, 3126977, 4020399, 9380931, 28142793]

約数ペア:

[(1, 28142793), (3, 9380931), (7, 4020399), (9, 3126977), (21, 1340133), (63, 446711), (103, 273231), (309, 91077), (721, 39033), (927, 30359), (2163, 13011), (4337, 6489)]