21200130

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3739}}^1$

素因数の和:3765

約数の個数: 80

約数和(自身を含む): 65165760

約数和(自身を除く): 43965630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3739, 5670, 7478, 11217, 18695, 22434, 26173, 33651, 37390, 52346, 56085, 67302, 78519, 100953, 112170, 130865, 157038, 168255, 201906, 235557, 261730, 302859, 336510, 392595, 471114, 504765, 605718, 706671, 785190, 1009530, 1177785, 1413342, 1514295, 2120013, 2355570, 3028590, 3533355, 4240026, 7066710, 10600065, 21200130]

約数ペア:

[(1, 21200130), (2, 10600065), (3, 7066710), (5, 4240026), (6, 3533355), (7, 3028590), (9, 2355570), (10, 2120013), (14, 1514295), (15, 1413342), (18, 1177785), (21, 1009530), (27, 785190), (30, 706671), (35, 605718), (42, 504765), (45, 471114), (54, 392595), (63, 336510), (70, 302859), (81, 261730), (90, 235557), (105, 201906), (126, 168255), (135, 157038), (162, 130865), (189, 112170), (210, 100953), (270, 78519), (315, 67302), (378, 56085), (405, 52346), (567, 37390), (630, 33651), (810, 26173), (945, 22434), (1134, 18695), (1890, 11217), (2835, 7478), (3739, 5670)]