20512935

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10601}}^1$

素因数の和:10655

約数の個数: 24

約数和(自身を含む): 36386064

約数和(自身を除く): 15873129

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10601, 31803, 53005, 95409, 159015, 455843, 477045, 1367529, 2279215, 4102587, 6837645, 20512935]

約数ペア:

[(1, 20512935), (3, 6837645), (5, 4102587), (9, 2279215), (15, 1367529), (43, 477045), (45, 455843), (129, 159015), (215, 95409), (387, 53005), (645, 31803), (1935, 10601)]