21983278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20857}}^1$

素因数の和:20907

約数の個数: 16

約数和(自身を含む): 36042624

約数和(自身を除く): 14059346

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20857, 41714, 354569, 646567, 709138, 1293134, 10991639, 21983278]

約数ペア:

[(1, 21983278), (2, 10991639), (17, 1293134), (31, 709138), (34, 646567), (62, 354569), (527, 41714), (1054, 20857)]