19981872

素因数分解:

$2^4\times 3^2\times {\mathrm{138763}}^1$

素因数の和:138777

約数の個数: 30

約数和(自身を含む): 55921892

約数和(自身を除く): 35940020

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138763, 277526, 416289, 555052, 832578, 1110104, 1248867, 1665156, 2220208, 2497734, 3330312, 4995468, 6660624, 9990936, 19981872]

約数ペア:

[(1, 19981872), (2, 9990936), (3, 6660624), (4, 4995468), (6, 3330312), (8, 2497734), (9, 2220208), (12, 1665156), (16, 1248867), (18, 1110104), (24, 832578), (36, 555052), (48, 416289), (72, 277526), (144, 138763)]