20964872

素因数分解:

$2^3\times {\mathrm{479}}^1\times {\mathrm{5471}}^1$

素因数の和:5956

約数の個数: 16

約数和(自身を含む): 39398400

約数和(自身を除く): 18433528

約数列:

[1, 2, 4, 8, 479, 958, 1916, 3832, 5471, 10942, 21884, 43768, 2620609, 5241218, 10482436, 20964872]

約数ペア:

[(1, 20964872), (2, 10482436), (4, 5241218), (8, 2620609), (479, 43768), (958, 21884), (1916, 10942), (3832, 5471)]