16999983

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 128

約数和(自身を含む): 36771840

約数和(自身を除く): 19771857

約数列:

[1, 3, 7, 9, 11, 13, 17, 21, 27, 33, 37, 39, 51, 63, 77, 91, 99, 111, 117, 119, 143, 153, 187, 189, 221, 231, 259, 273, 297, 333, 351, 357, 407, 429, 459, 481, 561, 629, 663, 693, 777, 819, 999, 1001, 1071, 1221, 1287, 1309, 1443, 1547, 1683, 1887, 1989, 2079, 2331, 2431, 2457, 2849, 3003, 3213, 3367, 3663, 3861, 3927, 4329, 4403, 4641, 5049, 5291, 5661, 5967, 6919, 6993, 7293, 8177, 8547, 9009, 10101, 10989, 11781, 12987, 13209, 13923, 15873, 16983, 17017, 20757, 21879, 24531, 25641, 27027, 30303, 35343, 37037, 39627, 41769, 47619, 48433, 51051, 57239, 62271, 65637, 73593, 76923, 89947, 90909, 111111, 118881, 142857, 145299, 153153, 171717, 186813, 220779, 269841, 333333, 435897, 459459, 515151, 629629, 809523, 999999, 1307691, 1545453, 1888887, 2428569, 5666661, 16999983]

約数ペア:

[(1, 16999983), (3, 5666661), (7, 2428569), (9, 1888887), (11, 1545453), (13, 1307691), (17, 999999), (21, 809523), (27, 629629), (33, 515151), (37, 459459), (39, 435897), (51, 333333), (63, 269841), (77, 220779), (91, 186813), (99, 171717), (111, 153153), (117, 145299), (119, 142857), (143, 118881), (153, 111111), (187, 90909), (189, 89947), (221, 76923), (231, 73593), (259, 65637), (273, 62271), (297, 57239), (333, 51051), (351, 48433), (357, 47619), (407, 41769), (429, 39627), (459, 37037), (481, 35343), (561, 30303), (629, 27027), (663, 25641), (693, 24531), (777, 21879), (819, 20757), (999, 17017), (1001, 16983), (1071, 15873), (1221, 13923), (1287, 13209), (1309, 12987), (1443, 11781), (1547, 10989), (1683, 10101), (1887, 9009), (1989, 8547), (2079, 8177), (2331, 7293), (2431, 6993), (2457, 6919), (2849, 5967), (3003, 5661), (3213, 5291), (3367, 5049), (3663, 4641), (3861, 4403), (3927, 4329)]