21689514

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15649}}^1$

素因数の和:15675

約数の個数: 48

約数和(自身を含む): 58593600

約数和(自身を除く): 36904086

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 15649, 31298, 46947, 93894, 109543, 140841, 172139, 219086, 281682, 328629, 344278, 516417, 657258, 985887, 1032834, 1204973, 1549251, 1971774, 2409946, 3098502, 3614919, 7229838, 10844757, 21689514]

約数ペア:

[(1, 21689514), (2, 10844757), (3, 7229838), (6, 3614919), (7, 3098502), (9, 2409946), (11, 1971774), (14, 1549251), (18, 1204973), (21, 1032834), (22, 985887), (33, 657258), (42, 516417), (63, 344278), (66, 328629), (77, 281682), (99, 219086), (126, 172139), (154, 140841), (198, 109543), (231, 93894), (462, 46947), (693, 31298), (1386, 15649)]