19700226

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 56985600

約数和(自身を除く): 37285374

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 27, 38, 39, 42, 54, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 189, 211, 234, 247, 266, 273, 342, 351, 378, 399, 422, 494, 513, 546, 633, 702, 741, 798, 819, 1026, 1197, 1266, 1477, 1482, 1638, 1729, 1899, 2223, 2394, 2457, 2743, 2954, 3458, 3591, 3798, 4009, 4431, 4446, 4914, 5187, 5486, 5697, 6669, 7182, 8018, 8229, 8862, 10374, 11394, 12027, 13293, 13338, 15561, 16458, 19201, 24054, 24687, 26586, 28063, 31122, 36081, 38402, 39879, 46683, 49374, 52117, 56126, 57603, 72162, 74061, 79758, 84189, 93366, 104234, 108243, 115206, 148122, 156351, 168378, 172809, 216486, 252567, 312702, 345618, 364819, 469053, 505134, 518427, 729638, 757701, 938106, 1036854, 1094457, 1407159, 1515402, 2188914, 2814318, 3283371, 6566742, 9850113, 19700226]

約数ペア:

[(1, 19700226), (2, 9850113), (3, 6566742), (6, 3283371), (7, 2814318), (9, 2188914), (13, 1515402), (14, 1407159), (18, 1094457), (19, 1036854), (21, 938106), (26, 757701), (27, 729638), (38, 518427), (39, 505134), (42, 469053), (54, 364819), (57, 345618), (63, 312702), (78, 252567), (91, 216486), (114, 172809), (117, 168378), (126, 156351), (133, 148122), (171, 115206), (182, 108243), (189, 104234), (211, 93366), (234, 84189), (247, 79758), (266, 74061), (273, 72162), (342, 57603), (351, 56126), (378, 52117), (399, 49374), (422, 46683), (494, 39879), (513, 38402), (546, 36081), (633, 31122), (702, 28063), (741, 26586), (798, 24687), (819, 24054), (1026, 19201), (1197, 16458), (1266, 15561), (1477, 13338), (1482, 13293), (1638, 12027), (1729, 11394), (1899, 10374), (2223, 8862), (2394, 8229), (2457, 8018), (2743, 7182), (2954, 6669), (3458, 5697), (3591, 5486), (3798, 5187), (4009, 4914), (4431, 4446)]