21094787

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2371}}^1$

素因数の和:2450

約数の個数: 16

約数和(自身を含む): 25503744

約数和(自身を除く): 4408957

約数列:

[1, 7, 31, 41, 217, 287, 1271, 2371, 8897, 16597, 73501, 97211, 514507, 680477, 3013541, 21094787]

約数ペア:

[(1, 21094787), (7, 3013541), (31, 680477), (41, 514507), (217, 97211), (287, 73501), (1271, 16597), (2371, 8897)]