18380054

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 48

約数和(自身を含む): 35728128

約数和(自身を除く): 17348074

約数列:

[1, 2, 7, 11, 14, 22, 41, 71, 77, 82, 142, 154, 287, 451, 497, 574, 781, 902, 994, 1562, 1681, 2911, 3157, 3362, 5467, 5822, 6314, 10934, 11767, 18491, 20377, 23534, 32021, 36982, 40754, 64042, 119351, 129437, 224147, 238702, 258874, 448294, 835457, 1312861, 1670914, 2625722, 9190027, 18380054]

約数ペア:

[(1, 18380054), (2, 9190027), (7, 2625722), (11, 1670914), (14, 1312861), (22, 835457), (41, 448294), (71, 258874), (77, 238702), (82, 224147), (142, 129437), (154, 119351), (287, 64042), (451, 40754), (497, 36982), (574, 32021), (781, 23534), (902, 20377), (994, 18491), (1562, 11767), (1681, 10934), (2911, 6314), (3157, 5822), (3362, 5467)]