11989557

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 18195840

約数和(自身を除く): 6206283

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 647, 1941, 2059, 5823, 6177, 18531, 18763, 45937, 56289, 137811, 168867, 413433, 1332173, 3996519, 11989557]

約数ペア:

[(1, 11989557), (3, 3996519), (9, 1332173), (29, 413433), (71, 168867), (87, 137811), (213, 56289), (261, 45937), (639, 18763), (647, 18531), (1941, 6177), (2059, 5823)]