20956672

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{61}}^2$

素因数の和:151

約数の個数: 60

約数和(自身を含む): 46440108

約数和(自身を除く): 25483436

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, 1342, 1408, 1952, 2684, 2816, 3721, 3904, 5368, 5632, 7442, 7808, 10736, 14884, 15616, 21472, 29768, 31232, 40931, 42944, 59536, 81862, 85888, 119072, 163724, 171776, 238144, 327448, 343552, 476288, 654896, 952576, 1309792, 1905152, 2619584, 5239168, 10478336, 20956672]

約数ペア:

[(1, 20956672), (2, 10478336), (4, 5239168), (8, 2619584), (11, 1905152), (16, 1309792), (22, 952576), (32, 654896), (44, 476288), (61, 343552), (64, 327448), (88, 238144), (122, 171776), (128, 163724), (176, 119072), (244, 85888), (256, 81862), (352, 59536), (488, 42944), (512, 40931), (671, 31232), (704, 29768), (976, 21472), (1342, 15616), (1408, 14884), (1952, 10736), (2684, 7808), (2816, 7442), (3721, 5632), (3904, 5368)]