21870968

素因数分解:

$2^3\times 7^1\times {\mathrm{390553}}^1$

素因数の和:390566

約数の個数: 16

約数和(自身を含む): 46866480

約数和(自身を除く): 24995512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390553, 781106, 1562212, 2733871, 3124424, 5467742, 10935484, 21870968]

約数ペア:

[(1, 21870968), (2, 10935484), (4, 5467742), (7, 3124424), (8, 2733871), (14, 1562212), (28, 781106), (56, 390553)]