200020821

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 366643200

約数和(自身を除く): 166622379

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 43, 77, 91, 129, 143, 231, 273, 301, 429, 473, 559, 903, 1001, 1419, 1549, 1677, 3003, 3311, 3913, 4647, 6149, 9933, 10843, 11739, 17039, 18447, 20137, 32529, 43043, 51117, 60411, 66607, 119273, 129129, 140959, 199821, 221507, 357819, 422877, 466249, 664521, 732677, 865891, 1398747, 1550549, 2198031, 2597673, 4651647, 5128739, 6061237, 9524801, 15386217, 18183711, 28574403, 66673607, 200020821]

約数ペア:

[(1, 200020821), (3, 66673607), (7, 28574403), (11, 18183711), (13, 15386217), (21, 9524801), (33, 6061237), (39, 5128739), (43, 4651647), (77, 2597673), (91, 2198031), (129, 1550549), (143, 1398747), (231, 865891), (273, 732677), (301, 664521), (429, 466249), (473, 422877), (559, 357819), (903, 221507), (1001, 199821), (1419, 140959), (1549, 129129), (1677, 119273), (3003, 66607), (3311, 60411), (3913, 51117), (4647, 43043), (6149, 32529), (9933, 20137), (10843, 18447), (11739, 17039)]