21004801

素因数分解:

${\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:276

約数の個数: 16

約数和(自身を含む): 22297680

約数和(自身を除く): 1292879

約数列:

[1, 53, 61, 73, 89, 3233, 3869, 4453, 4717, 5429, 6497, 236009, 287737, 344341, 396317, 21004801]

約数ペア:

[(1, 21004801), (53, 396317), (61, 344341), (73, 287737), (89, 236009), (3233, 6497), (3869, 5429), (4453, 4717)]