21564774

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15559}}^1$

素因数の和:15585

約数の個数: 48

約数和(自身を含む): 58256640

約数和(自身を除く): 36691866

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, 15559, 31118, 46677, 93354, 108913, 140031, 171149, 217826, 280062, 326739, 342298, 513447, 653478, 980217, 1026894, 1198043, 1540341, 1960434, 2396086, 3080682, 3594129, 7188258, 10782387, 21564774]

約数ペア:

[(1, 21564774), (2, 10782387), (3, 7188258), (6, 3594129), (7, 3080682), (9, 2396086), (11, 1960434), (14, 1540341), (18, 1198043), (21, 1026894), (22, 980217), (33, 653478), (42, 513447), (63, 342298), (66, 326739), (77, 280062), (99, 217826), (126, 171149), (154, 140031), (198, 108913), (231, 93354), (462, 46677), (693, 31118), (1386, 15559)]