21085654324

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1296143}}^1$

素因数の和:1296244

約数の個数: 36

約数和(自身を含む): 43441562304

約数和(自身を除く): 22355907980

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 2324, 4067, 8134, 16268, 1296143, 2592286, 5184572, 9073001, 18146002, 36292004, 63511007, 107579869, 127022014, 215159738, 254044028, 430319476, 753059083, 1506118166, 3012236332, 5271413581, 10542827162, 21085654324]

約数ペア:

[(1, 21085654324), (2, 10542827162), (4, 5271413581), (7, 3012236332), (14, 1506118166), (28, 753059083), (49, 430319476), (83, 254044028), (98, 215159738), (166, 127022014), (196, 107579869), (332, 63511007), (581, 36292004), (1162, 18146002), (2324, 9073001), (4067, 5184572), (8134, 2592286), (16268, 1296143)]