18128572

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 40158720

約数和(自身を除く): 22030148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 829, 994, 1562, 1658, 1988, 3124, 3316, 5467, 5803, 9119, 10934, 11606, 18238, 21868, 23212, 36476, 58859, 63833, 117718, 127666, 235436, 255332, 412013, 647449, 824026, 1294898, 1648052, 2589796, 4532143, 9064286, 18128572]

約数ペア:

[(1, 18128572), (2, 9064286), (4, 4532143), (7, 2589796), (11, 1648052), (14, 1294898), (22, 824026), (28, 647449), (44, 412013), (71, 255332), (77, 235436), (142, 127666), (154, 117718), (284, 63833), (308, 58859), (497, 36476), (781, 23212), (829, 21868), (994, 18238), (1562, 11606), (1658, 10934), (1988, 9119), (3124, 5803), (3316, 5467)]