18238725

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:906

約数の個数: 36

約数和(自身を含む): 33026656

約数和(自身を除く): 14787931

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 787, 927, 1545, 2361, 2575, 3935, 4635, 7083, 7725, 11805, 19675, 23175, 35415, 59025, 81061, 177075, 243183, 405305, 729549, 1215915, 2026525, 3647745, 6079575, 18238725]

約数ペア:

[(1, 18238725), (3, 6079575), (5, 3647745), (9, 2026525), (15, 1215915), (25, 729549), (45, 405305), (75, 243183), (103, 177075), (225, 81061), (309, 59025), (515, 35415), (787, 23175), (927, 19675), (1545, 11805), (2361, 7725), (2575, 7083), (3935, 4635)]