21329584

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:373

約数の個数: 40

約数和(自身を含む): 42573168

約数和(自身を除く): 21243584

約数列:

[1, 2, 4, 8, 16, 67, 101, 134, 197, 202, 268, 394, 404, 536, 788, 808, 1072, 1576, 1616, 3152, 6767, 13199, 13534, 19897, 26398, 27068, 39794, 52796, 54136, 79588, 105592, 108272, 159176, 211184, 318352, 1333099, 2666198, 5332396, 10664792, 21329584]

約数ペア:

[(1, 21329584), (2, 10664792), (4, 5332396), (8, 2666198), (16, 1333099), (67, 318352), (101, 211184), (134, 159176), (197, 108272), (202, 105592), (268, 79588), (394, 54136), (404, 52796), (536, 39794), (788, 27068), (808, 26398), (1072, 19897), (1576, 13534), (1616, 13199), (3152, 6767)]