21225400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15161}}^1$

素因数の和:15184

約数の個数: 48

約数和(自身を含む): 56402640

約数和(自身を除く): 35177240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15161, 30322, 60644, 75805, 106127, 121288, 151610, 212254, 303220, 379025, 424508, 530635, 606440, 758050, 849016, 1061270, 1516100, 2122540, 2653175, 3032200, 4245080, 5306350, 10612700, 21225400]

約数ペア:

[(1, 21225400), (2, 10612700), (4, 5306350), (5, 4245080), (7, 3032200), (8, 2653175), (10, 2122540), (14, 1516100), (20, 1061270), (25, 849016), (28, 758050), (35, 606440), (40, 530635), (50, 424508), (56, 379025), (70, 303220), (100, 212254), (140, 151610), (175, 121288), (200, 106127), (280, 75805), (350, 60644), (700, 30322), (1400, 15161)]