27971721

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 41783040

約数和(自身を除く): 13811319

約数列:

[1, 3, 9, 47, 89, 141, 267, 423, 743, 801, 2229, 4183, 6687, 12549, 34921, 37647, 66127, 104763, 198381, 314289, 595143, 3107969, 9323907, 27971721]

約数ペア:

[(1, 27971721), (3, 9323907), (9, 3107969), (47, 595143), (89, 314289), (141, 198381), (267, 104763), (423, 66127), (743, 37647), (801, 34921), (2229, 12549), (4183, 6687)]