19495984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13691}}^1$

素因数の和:13788

約数の個数: 20

約数和(自身を含む): 38200680

約数和(自身を除く): 18704696

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13691, 27382, 54764, 109528, 219056, 1218499, 2436998, 4873996, 9747992, 19495984]

約数ペア:

[(1, 19495984), (2, 9747992), (4, 4873996), (8, 2436998), (16, 1218499), (89, 219056), (178, 109528), (356, 54764), (712, 27382), (1424, 13691)]