21383768

素因数分解:

$2^3\times 7^1\times {\mathrm{381853}}^1$

素因数の和:381866

約数の個数: 16

約数和(自身を含む): 45822480

約数和(自身を除く): 24438712

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 381853, 763706, 1527412, 2672971, 3054824, 5345942, 10691884, 21383768]

約数ペア:

[(1, 21383768), (2, 10691884), (4, 5345942), (7, 3054824), (8, 2672971), (14, 1527412), (28, 763706), (56, 381853)]