18128936

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 41731200

約数和(自身を除く): 23602264

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 137, 139, 238, 274, 278, 476, 548, 556, 952, 959, 973, 1096, 1112, 1918, 1946, 2329, 2363, 3836, 3892, 4658, 4726, 7672, 7784, 9316, 9452, 16303, 16541, 18632, 18904, 19043, 32606, 33082, 38086, 65212, 66164, 76172, 130424, 132328, 133301, 152344, 266602, 323731, 533204, 647462, 1066408, 1294924, 2266117, 2589848, 4532234, 9064468, 18128936]

約数ペア:

[(1, 18128936), (2, 9064468), (4, 4532234), (7, 2589848), (8, 2266117), (14, 1294924), (17, 1066408), (28, 647462), (34, 533204), (56, 323731), (68, 266602), (119, 152344), (136, 133301), (137, 132328), (139, 130424), (238, 76172), (274, 66164), (278, 65212), (476, 38086), (548, 33082), (556, 32606), (952, 19043), (959, 18904), (973, 18632), (1096, 16541), (1112, 16303), (1918, 9452), (1946, 9316), (2329, 7784), (2363, 7672), (3836, 4726), (3892, 4658)]