19670656

素因数分解:

$2^7\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 39412800

約数和(自身を除く): 19742144

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 239, 478, 643, 956, 1286, 1912, 2572, 3824, 5144, 7648, 10288, 15296, 20576, 30592, 41152, 82304, 153677, 307354, 614708, 1229416, 2458832, 4917664, 9835328, 19670656]

約数ペア:

[(1, 19670656), (2, 9835328), (4, 4917664), (8, 2458832), (16, 1229416), (32, 614708), (64, 307354), (128, 153677), (239, 82304), (478, 41152), (643, 30592), (956, 20576), (1286, 15296), (1912, 10288), (2572, 7648), (3824, 5144)]