20189869749

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1108907}}^1$

素因数の和:1108954

約数の個数: 36

約数和(自身を含む): 35405214624

約数和(自身を除く): 15215344875

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 289, 357, 867, 1071, 2023, 2601, 6069, 18207, 1108907, 3326721, 7762349, 9980163, 18851419, 23287047, 56554257, 69861141, 131959933, 169662771, 320474123, 395879799, 961422369, 1187639397, 2243318861, 2884267107, 6729956583, 20189869749]

約数ペア:

[(1, 20189869749), (3, 6729956583), (7, 2884267107), (9, 2243318861), (17, 1187639397), (21, 961422369), (51, 395879799), (63, 320474123), (119, 169662771), (153, 131959933), (289, 69861141), (357, 56554257), (867, 23287047), (1071, 18851419), (2023, 9980163), (2601, 7762349), (6069, 3326721), (18207, 1108907)]