209681318

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 403439616

約数和(自身を除く): 193758298

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 127, 142, 151, 154, 254, 302, 497, 781, 889, 994, 1057, 1397, 1562, 1661, 1778, 2114, 2794, 3322, 5467, 9017, 9779, 10721, 10934, 11627, 18034, 19177, 19558, 21442, 23254, 38354, 63119, 75047, 99187, 117931, 126238, 134239, 150094, 198374, 210947, 235862, 268478, 421894, 694309, 825517, 1361567, 1388618, 1476629, 1651034, 2723134, 2953258, 9530969, 14977237, 19061938, 29954474, 104840659, 209681318]

約数ペア:

[(1, 209681318), (2, 104840659), (7, 29954474), (11, 19061938), (14, 14977237), (22, 9530969), (71, 2953258), (77, 2723134), (127, 1651034), (142, 1476629), (151, 1388618), (154, 1361567), (254, 825517), (302, 694309), (497, 421894), (781, 268478), (889, 235862), (994, 210947), (1057, 198374), (1397, 150094), (1562, 134239), (1661, 126238), (1778, 117931), (2114, 99187), (2794, 75047), (3322, 63119), (5467, 38354), (9017, 23254), (9779, 21442), (10721, 19558), (10934, 19177), (11627, 18034)]