21797168

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15307}}^1$

素因数の和:15404

約数の個数: 20

約数和(自身を含む): 42709320

約数和(自身を除く): 20912152

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15307, 30614, 61228, 122456, 244912, 1362323, 2724646, 5449292, 10898584, 21797168]

約数ペア:

[(1, 21797168), (2, 10898584), (4, 5449292), (8, 2724646), (16, 1362323), (89, 244912), (178, 122456), (356, 61228), (712, 30614), (1424, 15307)]