20509132

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2029}}^1$

素因数の和:2078

約数の個数: 36

約数和(自身を含む): 43312080

約数和(自身を除く): 22802948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2029, 2527, 4058, 5054, 8116, 10108, 14203, 28406, 38551, 56812, 77102, 154204, 269857, 539714, 732469, 1079428, 1464938, 2929876, 5127283, 10254566, 20509132]

約数ペア:

[(1, 20509132), (2, 10254566), (4, 5127283), (7, 2929876), (14, 1464938), (19, 1079428), (28, 732469), (38, 539714), (76, 269857), (133, 154204), (266, 77102), (361, 56812), (532, 38551), (722, 28406), (1444, 14203), (2029, 10108), (2527, 8116), (4058, 5054)]