20193075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{12821}}^1$

素因数の和:12844

約数の個数: 36

約数和(自身を含む): 41338128

約数和(自身を除く): 21145053

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 12821, 38463, 64105, 89747, 115389, 192315, 269241, 320525, 448735, 576945, 807723, 961575, 1346205, 2243675, 2884725, 4038615, 6731025, 20193075]

約数ペア:

[(1, 20193075), (3, 6731025), (5, 4038615), (7, 2884725), (9, 2243675), (15, 1346205), (21, 961575), (25, 807723), (35, 576945), (45, 448735), (63, 320525), (75, 269241), (105, 192315), (175, 115389), (225, 89747), (315, 64105), (525, 38463), (1575, 12821)]