21858317

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 24665088

約数和(自身を除く): 2806771

約数列:

[1, 13, 31, 73, 403, 743, 949, 2263, 9659, 23033, 29419, 54239, 299429, 705107, 1681409, 21858317]

約数ペア:

[(1, 21858317), (13, 1681409), (31, 705107), (73, 299429), (403, 54239), (743, 29419), (949, 23033), (2263, 9659)]