19687941

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2671}}^1$

素因数の和:2703

約数の個数: 40

約数和(自身を含む): 36210944

約数和(自身を除く): 16523003

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2671, 7371, 8013, 18697, 24039, 34723, 56091, 72117, 104169, 168273, 216351, 243061, 312507, 504819, 729183, 937521, 1514457, 2187549, 2812563, 6562647, 19687941]

約数ペア:

[(1, 19687941), (3, 6562647), (7, 2812563), (9, 2187549), (13, 1514457), (21, 937521), (27, 729183), (39, 504819), (63, 312507), (81, 243061), (91, 216351), (117, 168273), (189, 104169), (273, 72117), (351, 56091), (567, 34723), (819, 24039), (1053, 18697), (2457, 8013), (2671, 7371)]