20997936

素因数分解:

$2^4\times 3^2\times {\mathrm{145819}}^1$

素因数の和:145833

約数の個数: 30

約数和(自身を含む): 58765460

約数和(自身を除く): 37767524

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145819, 291638, 437457, 583276, 874914, 1166552, 1312371, 1749828, 2333104, 2624742, 3499656, 5249484, 6999312, 10498968, 20997936]

約数ペア:

[(1, 20997936), (2, 10498968), (3, 6999312), (4, 5249484), (6, 3499656), (8, 2624742), (9, 2333104), (12, 1749828), (16, 1312371), (18, 1166552), (24, 874914), (36, 583276), (48, 437457), (72, 291638), (144, 145819)]