19885341

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6271}}^1$

素因数の和:6432

約数の個数: 16

約数和(自身を含む): 30507008

約数和(自身を除く): 10621667

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6271, 18813, 43897, 131691, 946921, 2840763, 6628447, 19885341]

約数ペア:

[(1, 19885341), (3, 6628447), (7, 2840763), (21, 946921), (151, 131691), (453, 43897), (1057, 18813), (3171, 6271)]