19210905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:751

約数の個数: 64

約数和(自身を含む): 40435200

約数和(自身を除く): 21224295

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 701, 783, 945, 1015, 1305, 1827, 2103, 3045, 3505, 3915, 4907, 5481, 6309, 9135, 10515, 14721, 18927, 20329, 24535, 27405, 31545, 44163, 60987, 73605, 94635, 101645, 132489, 142303, 182961, 220815, 304935, 426909, 548883, 662445, 711515, 914805, 1280727, 2134545, 2744415, 3842181, 6403635, 19210905]

約数ペア:

[(1, 19210905), (3, 6403635), (5, 3842181), (7, 2744415), (9, 2134545), (15, 1280727), (21, 914805), (27, 711515), (29, 662445), (35, 548883), (45, 426909), (63, 304935), (87, 220815), (105, 182961), (135, 142303), (145, 132489), (189, 101645), (203, 94635), (261, 73605), (315, 60987), (435, 44163), (609, 31545), (701, 27405), (783, 24535), (945, 20329), (1015, 18927), (1305, 14721), (1827, 10515), (2103, 9135), (3045, 6309), (3505, 5481), (3915, 4907)]