21393152

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 47682432

約数和(自身を除く): 26289280

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 71, 88, 107, 128, 142, 176, 214, 256, 284, 352, 428, 568, 704, 781, 856, 1136, 1177, 1408, 1562, 1712, 2272, 2354, 2816, 3124, 3424, 4544, 4708, 6248, 6848, 7597, 9088, 9416, 12496, 13696, 15194, 18176, 18832, 24992, 27392, 30388, 37664, 49984, 60776, 75328, 83567, 99968, 121552, 150656, 167134, 199936, 243104, 301312, 334268, 486208, 668536, 972416, 1337072, 1944832, 2674144, 5348288, 10696576, 21393152]

約数ペア:

[(1, 21393152), (2, 10696576), (4, 5348288), (8, 2674144), (11, 1944832), (16, 1337072), (22, 972416), (32, 668536), (44, 486208), (64, 334268), (71, 301312), (88, 243104), (107, 199936), (128, 167134), (142, 150656), (176, 121552), (214, 99968), (256, 83567), (284, 75328), (352, 60776), (428, 49984), (568, 37664), (704, 30388), (781, 27392), (856, 24992), (1136, 18832), (1177, 18176), (1408, 15194), (1562, 13696), (1712, 12496), (2272, 9416), (2354, 9088), (2816, 7597), (3124, 6848), (3424, 6248), (4544, 4708)]