19785825

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1871}}^1$

素因数の和:1934

約数の個数: 36

約数和(自身を含む): 36211968

約数和(自身を除く): 16426143

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 1871, 2115, 3525, 5613, 9355, 10575, 16839, 28065, 46775, 84195, 87937, 140325, 263811, 420975, 439685, 791433, 1319055, 2198425, 3957165, 6595275, 19785825]

約数ペア:

[(1, 19785825), (3, 6595275), (5, 3957165), (9, 2198425), (15, 1319055), (25, 791433), (45, 439685), (47, 420975), (75, 263811), (141, 140325), (225, 87937), (235, 84195), (423, 46775), (705, 28065), (1175, 16839), (1871, 10575), (2115, 9355), (3525, 5613)]