21712128

素因数分解:

$2^8\times 3^1\times {\mathrm{17}}^1\times {\mathrm{1663}}^1$

素因数の和:1699

約数の個数: 72

約数和(自身を含む): 61221888

約数和(自身を除く): 39509760

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 64, 68, 96, 102, 128, 136, 192, 204, 256, 272, 384, 408, 544, 768, 816, 1088, 1632, 1663, 2176, 3264, 3326, 4352, 4989, 6528, 6652, 9978, 13056, 13304, 19956, 26608, 28271, 39912, 53216, 56542, 79824, 84813, 106432, 113084, 159648, 169626, 212864, 226168, 319296, 339252, 425728, 452336, 638592, 678504, 904672, 1277184, 1357008, 1809344, 2714016, 3618688, 5428032, 7237376, 10856064, 21712128]

約数ペア:

[(1, 21712128), (2, 10856064), (3, 7237376), (4, 5428032), (6, 3618688), (8, 2714016), (12, 1809344), (16, 1357008), (17, 1277184), (24, 904672), (32, 678504), (34, 638592), (48, 452336), (51, 425728), (64, 339252), (68, 319296), (96, 226168), (102, 212864), (128, 169626), (136, 159648), (192, 113084), (204, 106432), (256, 84813), (272, 79824), (384, 56542), (408, 53216), (544, 39912), (768, 28271), (816, 26608), (1088, 19956), (1632, 13304), (1663, 13056), (2176, 9978), (3264, 6652), (3326, 6528), (4352, 4989)]