20403796

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5479}}^1$

素因数の和:5516

約数の個数: 36

約数和(自身を含む): 43730400

約数和(自身を除く): 23326604

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5479, 10958, 21916, 38353, 76706, 104101, 153412, 208202, 268471, 416404, 536942, 728707, 1073884, 1457414, 2914828, 5100949, 10201898, 20403796]

約数ペア:

[(1, 20403796), (2, 10201898), (4, 5100949), (7, 2914828), (14, 1457414), (19, 1073884), (28, 728707), (38, 536942), (49, 416404), (76, 268471), (98, 208202), (133, 153412), (196, 104101), (266, 76706), (532, 38353), (931, 21916), (1862, 10958), (3724, 5479)]