21188426

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{701}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 38817792

約数和(自身を除く): 17629366

約数列:

[1, 2, 7, 14, 17, 34, 119, 127, 238, 254, 701, 889, 1402, 1778, 2159, 4318, 4907, 9814, 11917, 15113, 23834, 30226, 83419, 89027, 166838, 178054, 623189, 1246378, 1513459, 3026918, 10594213, 21188426]

約数ペア:

[(1, 21188426), (2, 10594213), (7, 3026918), (14, 1513459), (17, 1246378), (34, 623189), (119, 178054), (127, 166838), (238, 89027), (254, 83419), (701, 30226), (889, 23834), (1402, 15113), (1778, 11917), (2159, 9814), (4318, 4907)]