20486853

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{457}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31508568

約数和(自身を除く): 11021715

約数列:

[1, 3, 9, 17, 51, 153, 293, 457, 879, 1371, 2637, 4113, 4981, 7769, 14943, 23307, 44829, 69921, 133901, 401703, 1205109, 2276317, 6828951, 20486853]

約数ペア:

[(1, 20486853), (3, 6828951), (9, 2276317), (17, 1205109), (51, 401703), (153, 133901), (293, 69921), (457, 44829), (879, 23307), (1371, 14943), (2637, 7769), (4113, 4981)]