21631897

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 3769703

約数列:

[1, 7, 53, 199, 293, 371, 1393, 2051, 10547, 15529, 58307, 73829, 108703, 408149, 3090271, 21631897]

約数ペア:

[(1, 21631897), (7, 3090271), (53, 408149), (199, 108703), (293, 73829), (371, 58307), (1393, 15529), (2051, 10547)]