19812608

素因数分解:

$2^8\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:610

約数の個数: 36

約数和(自身を含む): 39851868

約数和(自身を除く): 20039260

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 256, 386, 401, 772, 802, 1544, 1604, 3088, 3208, 6176, 6416, 12352, 12832, 24704, 25664, 49408, 51328, 77393, 102656, 154786, 309572, 619144, 1238288, 2476576, 4953152, 9906304, 19812608]

約数ペア:

[(1, 19812608), (2, 9906304), (4, 4953152), (8, 2476576), (16, 1238288), (32, 619144), (64, 309572), (128, 154786), (193, 102656), (256, 77393), (386, 51328), (401, 49408), (772, 25664), (802, 24704), (1544, 12832), (1604, 12352), (3088, 6416), (3208, 6176)]