19895764

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1223}}^1$

素因数の和:1324

約数の個数: 36

約数和(自身を含む): 41023584

約数和(自身を除く): 21127820

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 1162, 1223, 2324, 2446, 4067, 4892, 8134, 8561, 16268, 17122, 34244, 59927, 101509, 119854, 203018, 239708, 406036, 710563, 1421126, 2842252, 4973941, 9947882, 19895764]

約数ペア:

[(1, 19895764), (2, 9947882), (4, 4973941), (7, 2842252), (14, 1421126), (28, 710563), (49, 406036), (83, 239708), (98, 203018), (166, 119854), (196, 101509), (332, 59927), (581, 34244), (1162, 17122), (1223, 16268), (2324, 8561), (2446, 8134), (4067, 4892)]