20678156

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1733}}^1$

素因数の和:1913

約数の個数: 24

約数和(自身を含む): 38356080

約数和(自身を除く): 17677924

約数列:

[1, 2, 4, 19, 38, 76, 157, 314, 628, 1733, 2983, 3466, 5966, 6932, 11932, 32927, 65854, 131708, 272081, 544162, 1088324, 5169539, 10339078, 20678156]

約数ペア:

[(1, 20678156), (2, 10339078), (4, 5169539), (19, 1088324), (38, 544162), (76, 272081), (157, 131708), (314, 65854), (628, 32927), (1733, 11932), (2983, 6932), (3466, 5966)]