21047104

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:683

約数の個数: 56

約数和(自身を含む): 46149768

約数和(自身を除く): 25102664

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 208, 328, 416, 533, 617, 656, 832, 1066, 1234, 1312, 2132, 2468, 2624, 4264, 4936, 8021, 8528, 9872, 16042, 17056, 19744, 25297, 32084, 34112, 39488, 50594, 64168, 101188, 128336, 202376, 256672, 328861, 404752, 513344, 657722, 809504, 1315444, 1619008, 2630888, 5261776, 10523552, 21047104]

約数ペア:

[(1, 21047104), (2, 10523552), (4, 5261776), (8, 2630888), (13, 1619008), (16, 1315444), (26, 809504), (32, 657722), (41, 513344), (52, 404752), (64, 328861), (82, 256672), (104, 202376), (164, 128336), (208, 101188), (328, 64168), (416, 50594), (533, 39488), (617, 34112), (656, 32084), (832, 25297), (1066, 19744), (1234, 17056), (1312, 16042), (2132, 9872), (2468, 8528), (2624, 8021), (4264, 4936)]