19871754

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 46588608

約数和(自身を除く): 26716854

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 257, 263, 294, 514, 526, 771, 789, 1542, 1578, 1799, 1841, 3598, 3682, 5397, 5523, 10794, 11046, 12593, 12887, 25186, 25774, 37779, 38661, 67591, 75558, 77322, 135182, 202773, 405546, 473137, 946274, 1419411, 2838822, 3311959, 6623918, 9935877, 19871754]

約数ペア:

[(1, 19871754), (2, 9935877), (3, 6623918), (6, 3311959), (7, 2838822), (14, 1419411), (21, 946274), (42, 473137), (49, 405546), (98, 202773), (147, 135182), (257, 77322), (263, 75558), (294, 67591), (514, 38661), (526, 37779), (771, 25774), (789, 25186), (1542, 12887), (1578, 12593), (1799, 11046), (1841, 10794), (3598, 5523), (3682, 5397)]