20674736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1447}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 43092480

約数和(自身を除く): 22417744

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1447, 1786, 2894, 3572, 5788, 7144, 11576, 14288, 23152, 27493, 54986, 68009, 109972, 136018, 219944, 272036, 439888, 544072, 1088144, 1292171, 2584342, 5168684, 10337368, 20674736]

約数ペア:

[(1, 20674736), (2, 10337368), (4, 5168684), (8, 2584342), (16, 1292171), (19, 1088144), (38, 544072), (47, 439888), (76, 272036), (94, 219944), (152, 136018), (188, 109972), (304, 68009), (376, 54986), (752, 27493), (893, 23152), (1447, 14288), (1786, 11576), (2894, 7144), (3572, 5788)]