197821491

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{91457}}^1$

素因数の和:91570

約数の個数: 16

約数和(自身を含む): 304372224

約数和(自身を除く): 106550733

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 91457, 274371, 640199, 1920597, 9420071, 28260213, 65940497, 197821491]

約数ペア:

[(1, 197821491), (3, 65940497), (7, 28260213), (21, 9420071), (103, 1920597), (309, 640199), (721, 274371), (2163, 91457)]