21868168

素因数分解:

$2^3\times 7^1\times {\mathrm{390503}}^1$

素因数の和:390516

約数の個数: 16

約数和(自身を含む): 46860480

約数和(自身を除く): 24992312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390503, 781006, 1562012, 2733521, 3124024, 5467042, 10934084, 21868168]

約数ペア:

[(1, 21868168), (2, 10934084), (4, 5467042), (7, 3124024), (8, 2733521), (14, 1562012), (28, 781006), (56, 390503)]