21323872

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15497}}^1$

素因数の和:15550

約数の個数: 24

約数和(自身を含む): 42960456

約数和(自身を除く): 21636584

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15497, 30994, 61988, 123976, 247952, 495904, 666371, 1332742, 2665484, 5330968, 10661936, 21323872]

約数ペア:

[(1, 21323872), (2, 10661936), (4, 5330968), (8, 2665484), (16, 1332742), (32, 666371), (43, 495904), (86, 247952), (172, 123976), (344, 61988), (688, 30994), (1376, 15497)]