21444784

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28517}}^1$

素因数の和:28572

約数の個数: 20

約数和(自身を含む): 42434784

約数和(自身を除く): 20990000

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28517, 57034, 114068, 228136, 456272, 1340299, 2680598, 5361196, 10722392, 21444784]

約数ペア:

[(1, 21444784), (2, 10722392), (4, 5361196), (8, 2680598), (16, 1340299), (47, 456272), (94, 228136), (188, 114068), (376, 57034), (752, 28517)]