21032128

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1487}}^1$

素因数の和:1529

約数の個数: 56

約数和(自身を含む): 47621952

約数和(自身を除く): 26589824

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1487, 1768, 2974, 3536, 5948, 7072, 11896, 14144, 19331, 23792, 25279, 38662, 47584, 50558, 77324, 95168, 101116, 154648, 202232, 309296, 328627, 404464, 618592, 657254, 808928, 1237184, 1314508, 1617856, 2629016, 5258032, 10516064, 21032128]

約数ペア:

[(1, 21032128), (2, 10516064), (4, 5258032), (8, 2629016), (13, 1617856), (16, 1314508), (17, 1237184), (26, 808928), (32, 657254), (34, 618592), (52, 404464), (64, 328627), (68, 309296), (104, 202232), (136, 154648), (208, 101116), (221, 95168), (272, 77324), (416, 50558), (442, 47584), (544, 38662), (832, 25279), (884, 23792), (1088, 19331), (1487, 14144), (1768, 11896), (2974, 7072), (3536, 5948)]