21807675

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{941}}^1$

素因数の和:1060

約数の個数: 36

約数和(自身を含む): 39481104

約数和(自身を除く): 17673429

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 941, 1545, 2575, 2823, 4635, 4705, 7725, 8469, 14115, 23175, 23525, 42345, 70575, 96923, 211725, 290769, 484615, 872307, 1453845, 2423075, 4361535, 7269225, 21807675]

約数ペア:

[(1, 21807675), (3, 7269225), (5, 4361535), (9, 2423075), (15, 1453845), (25, 872307), (45, 484615), (75, 290769), (103, 211725), (225, 96923), (309, 70575), (515, 42345), (927, 23525), (941, 23175), (1545, 14115), (2575, 8469), (2823, 7725), (4635, 4705)]