20856056

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6469}}^1$

素因数の和:6519

約数の個数: 32

約数和(自身を含む): 43478400

約数和(自身を除く): 22622344

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6469, 12938, 25876, 51752, 84097, 168194, 200539, 336388, 401078, 672776, 802156, 1604312, 2607007, 5214014, 10428028, 20856056]

約数ペア:

[(1, 20856056), (2, 10428028), (4, 5214014), (8, 2607007), (13, 1604312), (26, 802156), (31, 672776), (52, 401078), (62, 336388), (104, 200539), (124, 168194), (248, 84097), (403, 51752), (806, 25876), (1612, 12938), (3224, 6469)]