19297131

素因数分解:

$3^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{523}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 30106944

約数和(自身を除く): 10809813

約数列:

[1, 3, 7, 21, 49, 147, 251, 523, 753, 1569, 1757, 3661, 5271, 10983, 12299, 25627, 36897, 76881, 131273, 393819, 918911, 2756733, 6432377, 19297131]

約数ペア:

[(1, 19297131), (3, 6432377), (7, 2756733), (21, 918911), (49, 393819), (147, 131273), (251, 76881), (523, 36897), (753, 25627), (1569, 12299), (1757, 10983), (3661, 5271)]