19653561

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:585

約数の個数: 24

約数和(自身を含む): 29582280

約数和(自身を除く): 9928719

約数列:

[1, 3, 9, 29, 87, 257, 261, 293, 771, 879, 2313, 2637, 7453, 8497, 22359, 25491, 67077, 75301, 76473, 225903, 677709, 2183729, 6551187, 19653561]

約数ペア:

[(1, 19653561), (3, 6551187), (9, 2183729), (29, 677709), (87, 225903), (257, 76473), (261, 75301), (293, 67077), (771, 25491), (879, 22359), (2313, 8497), (2637, 7453)]