20951336

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2383}}^1$

素因数の和:2553

約数の個数: 32

約数和(自身を含む): 45200640

約数和(自身を除く): 24249304

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2383, 4396, 4766, 8792, 9532, 16681, 19064, 33362, 66724, 133448, 374131, 748262, 1496524, 2618917, 2993048, 5237834, 10475668, 20951336]

約数ペア:

[(1, 20951336), (2, 10475668), (4, 5237834), (7, 2993048), (8, 2618917), (14, 1496524), (28, 748262), (56, 374131), (157, 133448), (314, 66724), (628, 33362), (1099, 19064), (1256, 16681), (2198, 9532), (2383, 8792), (4396, 4766)]