21311728

素因数分解:

$2^4\times {\mathrm{373}}^1\times {\mathrm{3571}}^1$

素因数の和:3952

約数の個数: 20

約数和(自身を含む): 41413768

約数和(自身を除く): 20102040

約数列:

[1, 2, 4, 8, 16, 373, 746, 1492, 2984, 3571, 5968, 7142, 14284, 28568, 57136, 1331983, 2663966, 5327932, 10655864, 21311728]

約数ペア:

[(1, 21311728), (2, 10655864), (4, 5327932), (8, 2663966), (16, 1331983), (373, 57136), (746, 28568), (1492, 14284), (2984, 7142), (3571, 5968)]