20543864

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1117}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 44608200

約数和(自身を除く): 24064336

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 121, 152, 209, 242, 418, 484, 836, 968, 1117, 1672, 2234, 2299, 4468, 4598, 8936, 9196, 12287, 18392, 21223, 24574, 42446, 49148, 84892, 98296, 135157, 169784, 233453, 270314, 466906, 540628, 933812, 1081256, 1867624, 2567983, 5135966, 10271932, 20543864]

約数ペア:

[(1, 20543864), (2, 10271932), (4, 5135966), (8, 2567983), (11, 1867624), (19, 1081256), (22, 933812), (38, 540628), (44, 466906), (76, 270314), (88, 233453), (121, 169784), (152, 135157), (209, 98296), (242, 84892), (418, 49148), (484, 42446), (836, 24574), (968, 21223), (1117, 18392), (1672, 12287), (2234, 9196), (2299, 8936), (4468, 4598)]