21137580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117431}}^1$

素因数の和:117446

約数の個数: 36

約数和(自身を含む): 64117872

約数和(自身を除く): 42980292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117431, 234862, 352293, 469724, 587155, 704586, 1056879, 1174310, 1409172, 1761465, 2113758, 2348620, 3522930, 4227516, 5284395, 7045860, 10568790, 21137580]

約数ペア:

[(1, 21137580), (2, 10568790), (3, 7045860), (4, 5284395), (5, 4227516), (6, 3522930), (9, 2348620), (10, 2113758), (12, 1761465), (15, 1409172), (18, 1174310), (20, 1056879), (30, 704586), (36, 587155), (45, 469724), (60, 352293), (90, 234862), (180, 117431)]