21352628

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 36

約数和(自身を含む): 41481636

約数和(自身を除く): 20129008

約数列:

[1, 2, 4, 11, 22, 44, 121, 157, 242, 281, 314, 484, 562, 628, 1124, 1727, 3091, 3454, 6182, 6908, 12364, 18997, 34001, 37994, 44117, 68002, 75988, 88234, 136004, 176468, 485287, 970574, 1941148, 5338157, 10676314, 21352628]

約数ペア:

[(1, 21352628), (2, 10676314), (4, 5338157), (11, 1941148), (22, 970574), (44, 485287), (121, 176468), (157, 136004), (242, 88234), (281, 75988), (314, 68002), (484, 44117), (562, 37994), (628, 34001), (1124, 18997), (1727, 12364), (3091, 6908), (3454, 6182)]