18131554

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 35458560

約数和(自身を除く): 17327006

約数列:

[1, 2, 7, 14, 17, 29, 34, 37, 58, 71, 74, 119, 142, 203, 238, 259, 406, 493, 497, 518, 629, 986, 994, 1073, 1207, 1258, 2059, 2146, 2414, 2627, 3451, 4118, 4403, 5254, 6902, 7511, 8449, 8806, 14413, 15022, 16898, 18241, 18389, 28826, 35003, 36482, 36778, 44659, 70006, 76183, 89318, 127687, 152366, 245021, 255374, 312613, 490042, 533281, 625226, 1066562, 1295111, 2590222, 9065777, 18131554]

約数ペア:

[(1, 18131554), (2, 9065777), (7, 2590222), (14, 1295111), (17, 1066562), (29, 625226), (34, 533281), (37, 490042), (58, 312613), (71, 255374), (74, 245021), (119, 152366), (142, 127687), (203, 89318), (238, 76183), (259, 70006), (406, 44659), (493, 36778), (497, 36482), (518, 35003), (629, 28826), (986, 18389), (994, 18241), (1073, 16898), (1207, 15022), (1258, 14413), (2059, 8806), (2146, 8449), (2414, 7511), (2627, 6902), (3451, 5254), (4118, 4403)]