21300286

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2944

約数の個数: 32

約数和(自身を含む): 39923712

約数和(自身を除く): 18623426

約数列:

[1, 2, 7, 14, 17, 31, 34, 62, 119, 217, 238, 434, 527, 1054, 2887, 3689, 5774, 7378, 20209, 40418, 49079, 89497, 98158, 178994, 343553, 626479, 687106, 1252958, 1521449, 3042898, 10650143, 21300286]

約数ペア:

[(1, 21300286), (2, 10650143), (7, 3042898), (14, 1521449), (17, 1252958), (31, 687106), (34, 626479), (62, 343553), (119, 178994), (217, 98158), (238, 89497), (434, 49079), (527, 40418), (1054, 20209), (2887, 7378), (3689, 5774)]