20581504

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{6991}}^1$

素因数の和:7028

約数の個数: 32

約数和(自身を含む): 42791040

約数和(自身を除く): 22209536

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 6991, 13982, 27964, 55928, 111856, 160793, 223712, 321586, 447424, 643172, 894848, 1286344, 2572688, 5145376, 10290752, 20581504]

約数ペア:

[(1, 20581504), (2, 10290752), (4, 5145376), (8, 2572688), (16, 1286344), (23, 894848), (32, 643172), (46, 447424), (64, 321586), (92, 223712), (128, 160793), (184, 111856), (368, 55928), (736, 27964), (1472, 13982), (2944, 6991)]