21552128

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1652

約数の個数: 44

約数和(自身を含む): 46425960

約数和(自身を除く): 24873832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1619, 1664, 3238, 3328, 6476, 6656, 12952, 13312, 21047, 25904, 42094, 51808, 84188, 103616, 168376, 207232, 336752, 414464, 673504, 828928, 1347008, 1657856, 2694016, 5388032, 10776064, 21552128]

約数ペア:

[(1, 21552128), (2, 10776064), (4, 5388032), (8, 2694016), (13, 1657856), (16, 1347008), (26, 828928), (32, 673504), (52, 414464), (64, 336752), (104, 207232), (128, 168376), (208, 103616), (256, 84188), (416, 51808), (512, 42094), (832, 25904), (1024, 21047), (1619, 13312), (1664, 12952), (3238, 6656), (3328, 6476)]