20017998

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 59256288

約数和(自身を除く): 39238290

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 33, 39, 42, 63, 66, 77, 78, 91, 99, 101, 117, 121, 126, 143, 154, 182, 198, 202, 231, 234, 242, 273, 286, 303, 363, 429, 462, 546, 606, 693, 707, 726, 819, 847, 858, 909, 1001, 1089, 1111, 1287, 1313, 1386, 1414, 1573, 1638, 1694, 1818, 2002, 2121, 2178, 2222, 2541, 2574, 2626, 3003, 3146, 3333, 3939, 4242, 4719, 5082, 6006, 6363, 6666, 7623, 7777, 7878, 9009, 9191, 9438, 9999, 11011, 11817, 12221, 12726, 14157, 14443, 15246, 15554, 18018, 18382, 19998, 22022, 23331, 23634, 24442, 27573, 28314, 28886, 33033, 36663, 43329, 46662, 55146, 66066, 69993, 73326, 82719, 85547, 86658, 99099, 101101, 109989, 129987, 139986, 158873, 165438, 171094, 198198, 202202, 219978, 256641, 259974, 303303, 317746, 476619, 513282, 606606, 769923, 909909, 953238, 1112111, 1429857, 1539846, 1819818, 2224222, 2859714, 3336333, 6672666, 10008999, 20017998]

約数ペア:

[(1, 20017998), (2, 10008999), (3, 6672666), (6, 3336333), (7, 2859714), (9, 2224222), (11, 1819818), (13, 1539846), (14, 1429857), (18, 1112111), (21, 953238), (22, 909909), (26, 769923), (33, 606606), (39, 513282), (42, 476619), (63, 317746), (66, 303303), (77, 259974), (78, 256641), (91, 219978), (99, 202202), (101, 198198), (117, 171094), (121, 165438), (126, 158873), (143, 139986), (154, 129987), (182, 109989), (198, 101101), (202, 99099), (231, 86658), (234, 85547), (242, 82719), (273, 73326), (286, 69993), (303, 66066), (363, 55146), (429, 46662), (462, 43329), (546, 36663), (606, 33033), (693, 28886), (707, 28314), (726, 27573), (819, 24442), (847, 23634), (858, 23331), (909, 22022), (1001, 19998), (1089, 18382), (1111, 18018), (1287, 15554), (1313, 15246), (1386, 14443), (1414, 14157), (1573, 12726), (1638, 12221), (1694, 11817), (1818, 11011), (2002, 9999), (2121, 9438), (2178, 9191), (2222, 9009), (2541, 7878), (2574, 7777), (2626, 7623), (3003, 6666), (3146, 6363), (3333, 6006), (3939, 5082), (4242, 4719)]