20843893

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2957}}^1$

素因数の和:3036

約数の個数: 16

約数和(自身を含む): 25557120

約数和(自身を除く): 4713227

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2957, 7049, 20699, 56183, 156721, 393281, 1097047, 2977699, 20843893]

約数ペア:

[(1, 20843893), (7, 2977699), (19, 1097047), (53, 393281), (133, 156721), (371, 56183), (1007, 20699), (2957, 7049)]