20487195

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5233}}^1$

素因数の和:5276

約数の個数: 32

約数和(自身を含む): 37684800

約数和(自身を除く): 17197605

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5233, 15699, 26165, 47097, 78495, 141291, 151757, 235485, 455271, 706455, 758785, 1365813, 2276355, 4097439, 6829065, 20487195]

約数ペア:

[(1, 20487195), (3, 6829065), (5, 4097439), (9, 2276355), (15, 1365813), (27, 758785), (29, 706455), (45, 455271), (87, 235485), (135, 151757), (145, 141291), (261, 78495), (435, 47097), (783, 26165), (1305, 15699), (3915, 5233)]