209880957

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 348364800

約数和(自身を除く): 138483843

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 89, 143, 239, 253, 267, 299, 429, 717, 759, 897, 979, 1157, 2047, 2629, 2937, 3107, 3289, 3471, 5497, 6141, 7887, 9321, 9867, 12727, 16491, 21271, 22517, 26611, 34177, 38181, 60467, 63813, 67551, 71461, 79833, 102531, 181401, 214383, 233981, 276523, 292721, 489233, 701943, 786071, 829569, 878163, 1467699, 2358213, 3041753, 5381563, 6360029, 9125259, 16144689, 19080087, 69960319, 209880957]

約数ペア:

[(1, 209880957), (3, 69960319), (11, 19080087), (13, 16144689), (23, 9125259), (33, 6360029), (39, 5381563), (69, 3041753), (89, 2358213), (143, 1467699), (239, 878163), (253, 829569), (267, 786071), (299, 701943), (429, 489233), (717, 292721), (759, 276523), (897, 233981), (979, 214383), (1157, 181401), (2047, 102531), (2629, 79833), (2937, 71461), (3107, 67551), (3289, 63813), (3471, 60467), (5497, 38181), (6141, 34177), (7887, 26611), (9321, 22517), (9867, 21271), (12727, 16491)]