19621936

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 19750544

約数列:

[1, 2, 4, 8, 16, 47, 94, 97, 188, 194, 269, 376, 388, 538, 752, 776, 1076, 1552, 2152, 4304, 4559, 9118, 12643, 18236, 25286, 26093, 36472, 50572, 52186, 72944, 101144, 104372, 202288, 208744, 417488, 1226371, 2452742, 4905484, 9810968, 19621936]

約数ペア:

[(1, 19621936), (2, 9810968), (4, 4905484), (8, 2452742), (16, 1226371), (47, 417488), (94, 208744), (97, 202288), (188, 104372), (194, 101144), (269, 72944), (376, 52186), (388, 50572), (538, 36472), (752, 26093), (776, 25286), (1076, 18236), (1552, 12643), (2152, 9118), (4304, 4559)]