21275368

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2689}}^1$

素因数の和:2761

約数の個数: 32

約数和(自身を含む): 42609600

約数和(自身を除く): 21334232

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 172, 184, 344, 989, 1978, 2689, 3956, 5378, 7912, 10756, 21512, 61847, 115627, 123694, 231254, 247388, 462508, 494776, 925016, 2659421, 5318842, 10637684, 21275368]

約数ペア:

[(1, 21275368), (2, 10637684), (4, 5318842), (8, 2659421), (23, 925016), (43, 494776), (46, 462508), (86, 247388), (92, 231254), (172, 123694), (184, 115627), (344, 61847), (989, 21512), (1978, 10756), (2689, 7912), (3956, 5378)]