21000687183

素因数分解:

$3^7\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47303}}^1$

素因数の和:47360

約数の個数: 64

約数和(自身を含む): 37237708800

約数和(自身を除く): 16237021617

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 243, 261, 567, 609, 729, 783, 1701, 1827, 2187, 2349, 5103, 5481, 7047, 15309, 16443, 21141, 47303, 49329, 63423, 141909, 147987, 331121, 425727, 443961, 993363, 1277181, 1371787, 2980089, 3831543, 4115361, 8940267, 9602509, 11494629, 12346083, 26820801, 28807527, 34483887, 37038249, 80462403, 86422581, 103451661, 111114747, 241387209, 259267743, 333344241, 724161627, 777803229, 1000032723, 2333409687, 3000098169, 7000229061, 21000687183]

約数ペア:

[(1, 21000687183), (3, 7000229061), (7, 3000098169), (9, 2333409687), (21, 1000032723), (27, 777803229), (29, 724161627), (63, 333344241), (81, 259267743), (87, 241387209), (189, 111114747), (203, 103451661), (243, 86422581), (261, 80462403), (567, 37038249), (609, 34483887), (729, 28807527), (783, 26820801), (1701, 12346083), (1827, 11494629), (2187, 9602509), (2349, 8940267), (5103, 4115361), (5481, 3831543), (7047, 2980089), (15309, 1371787), (16443, 1277181), (21141, 993363), (47303, 443961), (49329, 425727), (63423, 331121), (141909, 147987)]