20998512

素因数分解:

$2^4\times 3^2\times {\mathrm{145823}}^1$

素因数の和:145837

約数の個数: 30

約数和(自身を含む): 58767072

約数和(自身を除く): 37768560

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145823, 291646, 437469, 583292, 874938, 1166584, 1312407, 1749876, 2333168, 2624814, 3499752, 5249628, 6999504, 10499256, 20998512]

約数ペア:

[(1, 20998512), (2, 10499256), (3, 6999504), (4, 5249628), (6, 3499752), (8, 2624814), (9, 2333168), (12, 1749876), (16, 1312407), (18, 1166584), (24, 874938), (36, 583292), (48, 437469), (72, 291646), (144, 145823)]