21338254

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{827}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17610866

約数列:

[1, 2, 7, 14, 19, 38, 97, 133, 194, 266, 679, 827, 1358, 1654, 1843, 3686, 5789, 11578, 12901, 15713, 25802, 31426, 80219, 109991, 160438, 219982, 561533, 1123066, 1524161, 3048322, 10669127, 21338254]

約数ペア:

[(1, 21338254), (2, 10669127), (7, 3048322), (14, 1524161), (19, 1123066), (38, 561533), (97, 219982), (133, 160438), (194, 109991), (266, 80219), (679, 31426), (827, 25802), (1358, 15713), (1654, 12901), (1843, 11578), (3686, 5789)]