19816223

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1723}}^1$

素因数の和:1814

約数の個数: 16

約数和(自身を含む): 23832576

約数和(自身を除く): 4016353

約数列:

[1, 7, 31, 53, 217, 371, 1643, 1723, 11501, 12061, 53413, 91319, 373891, 639233, 2830889, 19816223]

約数ペア:

[(1, 19816223), (7, 2830889), (31, 639233), (53, 373891), (217, 91319), (371, 53413), (1643, 12061), (1723, 11501)]