19908248

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 39195360

約数和(自身を除く): 19287112

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 257, 421, 514, 842, 1028, 1684, 2056, 3368, 5911, 9683, 11822, 19366, 23644, 38732, 47288, 77464, 108197, 216394, 432788, 865576, 2488531, 4977062, 9954124, 19908248]

約数ペア:

[(1, 19908248), (2, 9954124), (4, 4977062), (8, 2488531), (23, 865576), (46, 432788), (92, 216394), (184, 108197), (257, 77464), (421, 47288), (514, 38732), (842, 23644), (1028, 19366), (1684, 11822), (2056, 9683), (3368, 5911)]