138691868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{13721}}^1$

素因数の和:13770

約数の個数: 36

約数和(自身を含む): 292772592

約数和(自身を除く): 154080724

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2527, 5054, 10108, 13721, 27442, 54884, 96047, 192094, 260699, 384188, 521398, 1042796, 1824893, 3649786, 4953281, 7299572, 9906562, 19813124, 34672967, 69345934, 138691868]

約数ペア:

[(1, 138691868), (2, 69345934), (4, 34672967), (7, 19813124), (14, 9906562), (19, 7299572), (28, 4953281), (38, 3649786), (76, 1824893), (133, 1042796), (266, 521398), (361, 384188), (532, 260699), (722, 192094), (1444, 96047), (2527, 54884), (5054, 27442), (10108, 13721)]