27974187

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 43752960

約数和(自身を除く): 15778773

約数列:

[1, 3, 9, 23, 27, 69, 107, 207, 321, 421, 621, 963, 1263, 2461, 2889, 3789, 7383, 9683, 11367, 22149, 29049, 45047, 66447, 87147, 135141, 261441, 405423, 1036081, 1216269, 3108243, 9324729, 27974187]

約数ペア:

[(1, 27974187), (3, 9324729), (9, 3108243), (23, 1216269), (27, 1036081), (69, 405423), (107, 261441), (207, 135141), (321, 87147), (421, 66447), (621, 45047), (963, 29049), (1263, 22149), (2461, 11367), (2889, 9683), (3789, 7383)]