20178962811

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{13381}}^1$

素因数の和:13577

約数の個数: 64

約数和(自身を含む): 34943078400

約数和(自身を除く): 14764115589

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 101, 189, 237, 303, 553, 707, 711, 909, 1659, 2121, 2133, 2727, 4977, 6363, 7979, 13381, 14931, 19089, 23937, 40143, 55853, 71811, 93667, 120429, 167559, 215433, 281001, 361287, 502677, 843003, 1057099, 1351481, 1508031, 2529009, 3171297, 4054443, 7399693, 9460367, 9513891, 12163329, 22199079, 28381101, 28541673, 36489987, 66597237, 85143303, 106766999, 199791711, 255429909, 320300997, 747368993, 960902991, 2242106979, 2882708973, 6726320937, 20178962811]

約数ペア:

[(1, 20178962811), (3, 6726320937), (7, 2882708973), (9, 2242106979), (21, 960902991), (27, 747368993), (63, 320300997), (79, 255429909), (101, 199791711), (189, 106766999), (237, 85143303), (303, 66597237), (553, 36489987), (707, 28541673), (711, 28381101), (909, 22199079), (1659, 12163329), (2121, 9513891), (2133, 9460367), (2727, 7399693), (4977, 4054443), (6363, 3171297), (7979, 2529009), (13381, 1508031), (14931, 1351481), (19089, 1057099), (23937, 843003), (40143, 502677), (55853, 361287), (71811, 281001), (93667, 215433), (120429, 167559)]