20269557

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2659}}^1$

素因数の和:2694

約数の個数: 36

約数和(自身を含む): 36793120

約数和(自身を除く): 16523563

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 2659, 7623, 7977, 18613, 23931, 29249, 55839, 87747, 167517, 204743, 263241, 321739, 614229, 965217, 1842687, 2252173, 2895651, 6756519, 20269557]

約数ペア:

[(1, 20269557), (3, 6756519), (7, 2895651), (9, 2252173), (11, 1842687), (21, 965217), (33, 614229), (63, 321739), (77, 263241), (99, 204743), (121, 167517), (231, 87747), (363, 55839), (693, 29249), (847, 23931), (1089, 18613), (2541, 7977), (2659, 7623)]