19967904

素因数分解:

$2^5\times 3^3\times {\mathrm{11}}^2\times {\mathrm{191}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 44382816

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 32, 33, 36, 44, 48, 54, 66, 72, 88, 96, 99, 108, 121, 132, 144, 176, 191, 198, 216, 242, 264, 288, 297, 352, 363, 382, 396, 432, 484, 528, 573, 594, 726, 764, 792, 864, 968, 1056, 1089, 1146, 1188, 1452, 1528, 1584, 1719, 1936, 2101, 2178, 2292, 2376, 2904, 3056, 3168, 3267, 3438, 3872, 4202, 4356, 4584, 4752, 5157, 5808, 6112, 6303, 6534, 6876, 8404, 8712, 9168, 9504, 10314, 11616, 12606, 13068, 13752, 16808, 17424, 18336, 18909, 20628, 23111, 25212, 26136, 27504, 33616, 34848, 37818, 41256, 46222, 50424, 52272, 55008, 56727, 67232, 69333, 75636, 82512, 92444, 100848, 104544, 113454, 138666, 151272, 165024, 184888, 201696, 207999, 226908, 277332, 302544, 369776, 415998, 453816, 554664, 605088, 623997, 739552, 831996, 907632, 1109328, 1247994, 1663992, 1815264, 2218656, 2495988, 3327984, 4991976, 6655968, 9983952, 19967904]

約数ペア:

[(1, 19967904), (2, 9983952), (3, 6655968), (4, 4991976), (6, 3327984), (8, 2495988), (9, 2218656), (11, 1815264), (12, 1663992), (16, 1247994), (18, 1109328), (22, 907632), (24, 831996), (27, 739552), (32, 623997), (33, 605088), (36, 554664), (44, 453816), (48, 415998), (54, 369776), (66, 302544), (72, 277332), (88, 226908), (96, 207999), (99, 201696), (108, 184888), (121, 165024), (132, 151272), (144, 138666), (176, 113454), (191, 104544), (198, 100848), (216, 92444), (242, 82512), (264, 75636), (288, 69333), (297, 67232), (352, 56727), (363, 55008), (382, 52272), (396, 50424), (432, 46222), (484, 41256), (528, 37818), (573, 34848), (594, 33616), (726, 27504), (764, 26136), (792, 25212), (864, 23111), (968, 20628), (1056, 18909), (1089, 18336), (1146, 17424), (1188, 16808), (1452, 13752), (1528, 13068), (1584, 12606), (1719, 11616), (1936, 10314), (2101, 9504), (2178, 9168), (2292, 8712), (2376, 8404), (2904, 6876), (3056, 6534), (3168, 6303), (3267, 6112), (3438, 5808), (3872, 5157), (4202, 4752), (4356, 4584)]