19778175

素因数分解:

$3^4\times 5^2\times {\mathrm{9767}}^1$

素因数の和:9789

約数の個数: 30

約数和(自身を含む): 36639768

約数和(自身を除く): 16861593

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9767, 29301, 48835, 87903, 146505, 244175, 263709, 439515, 732525, 791127, 1318545, 2197575, 3955635, 6592725, 19778175]

約数ペア:

[(1, 19778175), (3, 6592725), (5, 3955635), (9, 2197575), (15, 1318545), (25, 791127), (27, 732525), (45, 439515), (75, 263709), (81, 244175), (135, 146505), (225, 87903), (405, 48835), (675, 29301), (2025, 9767)]