21541216

素因数分解:

$2^5\times {\mathrm{607}}^1\times {\mathrm{1109}}^1$

素因数の和:1726

約数の個数: 24

約数和(自身を含む): 42517440

約数和(自身を除く): 20976224

約数列:

[1, 2, 4, 8, 16, 32, 607, 1109, 1214, 2218, 2428, 4436, 4856, 8872, 9712, 17744, 19424, 35488, 673163, 1346326, 2692652, 5385304, 10770608, 21541216]

約数ペア:

[(1, 21541216), (2, 10770608), (4, 5385304), (8, 2692652), (16, 1346326), (32, 673163), (607, 35488), (1109, 19424), (1214, 17744), (2218, 9712), (2428, 8872), (4436, 4856)]