21742656

素因数分解:

$2^6\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:340

約数の個数: 112

約数和(自身を含む): 64178688

約数和(自身を除く): 42436032

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 104, 124, 156, 186, 192, 208, 248, 281, 312, 372, 403, 416, 496, 562, 624, 744, 806, 832, 843, 992, 1124, 1209, 1248, 1488, 1612, 1686, 1984, 2248, 2418, 2496, 2976, 3224, 3372, 3653, 4496, 4836, 5952, 6448, 6744, 7306, 8711, 8992, 9672, 10959, 12896, 13488, 14612, 17422, 17984, 19344, 21918, 25792, 26133, 26976, 29224, 34844, 38688, 43836, 52266, 53952, 58448, 69688, 77376, 87672, 104532, 113243, 116896, 139376, 175344, 209064, 226486, 233792, 278752, 339729, 350688, 418128, 452972, 557504, 679458, 701376, 836256, 905944, 1358916, 1672512, 1811888, 2717832, 3623776, 5435664, 7247552, 10871328, 21742656]

約数ペア:

[(1, 21742656), (2, 10871328), (3, 7247552), (4, 5435664), (6, 3623776), (8, 2717832), (12, 1811888), (13, 1672512), (16, 1358916), (24, 905944), (26, 836256), (31, 701376), (32, 679458), (39, 557504), (48, 452972), (52, 418128), (62, 350688), (64, 339729), (78, 278752), (93, 233792), (96, 226486), (104, 209064), (124, 175344), (156, 139376), (186, 116896), (192, 113243), (208, 104532), (248, 87672), (281, 77376), (312, 69688), (372, 58448), (403, 53952), (416, 52266), (496, 43836), (562, 38688), (624, 34844), (744, 29224), (806, 26976), (832, 26133), (843, 25792), (992, 21918), (1124, 19344), (1209, 17984), (1248, 17422), (1488, 14612), (1612, 13488), (1686, 12896), (1984, 10959), (2248, 9672), (2418, 8992), (2496, 8711), (2976, 7306), (3224, 6744), (3372, 6448), (3653, 5952), (4496, 4836)]