21128118

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2039}}^1$

素因数の和:2212

約数の個数: 32

約数和(自身を含む): 46414080

約数和(自身を除く): 25285962

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 157, 314, 471, 942, 1727, 2039, 3454, 4078, 5181, 6117, 10362, 12234, 22429, 44858, 67287, 134574, 320123, 640246, 960369, 1920738, 3521353, 7042706, 10564059, 21128118]

約数ペア:

[(1, 21128118), (2, 10564059), (3, 7042706), (6, 3521353), (11, 1920738), (22, 960369), (33, 640246), (66, 320123), (157, 134574), (314, 67287), (471, 44858), (942, 22429), (1727, 12234), (2039, 10362), (3454, 6117), (4078, 5181)]