21987328

素因数分解:

$2^{15}\times {\mathrm{11}}^1\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 64

約数和(自身を含む): 48758040

約数和(自身を除く): 26770712

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 64, 88, 122, 128, 176, 244, 256, 352, 488, 512, 671, 704, 976, 1024, 1342, 1408, 1952, 2048, 2684, 2816, 3904, 4096, 5368, 5632, 7808, 8192, 10736, 11264, 15616, 16384, 21472, 22528, 31232, 32768, 42944, 45056, 62464, 85888, 90112, 124928, 171776, 180224, 249856, 343552, 360448, 499712, 687104, 999424, 1374208, 1998848, 2748416, 5496832, 10993664, 21987328]

約数ペア:

[(1, 21987328), (2, 10993664), (4, 5496832), (8, 2748416), (11, 1998848), (16, 1374208), (22, 999424), (32, 687104), (44, 499712), (61, 360448), (64, 343552), (88, 249856), (122, 180224), (128, 171776), (176, 124928), (244, 90112), (256, 85888), (352, 62464), (488, 45056), (512, 42944), (671, 32768), (704, 31232), (976, 22528), (1024, 21472), (1342, 16384), (1408, 15616), (1952, 11264), (2048, 10736), (2684, 8192), (2816, 7808), (3904, 5632), (4096, 5368)]