21374171

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1217}}^1$

素因数の和:1430

約数の個数: 16

約数和(自身を含む): 26464704

約数和(自身を除く): 5090533

約数列:

[1, 7, 13, 91, 193, 1217, 1351, 2509, 8519, 15821, 17563, 110747, 234881, 1644167, 3053453, 21374171]

約数ペア:

[(1, 21374171), (7, 3053453), (13, 1644167), (91, 234881), (193, 110747), (1217, 17563), (1351, 15821), (2509, 8519)]