21309680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38053}}^1$

素因数の和:38073

約数の個数: 40

約数和(自身を含む): 56624352

約数和(自身を除く): 35314672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38053, 76106, 152212, 190265, 266371, 304424, 380530, 532742, 608848, 761060, 1065484, 1331855, 1522120, 2130968, 2663710, 3044240, 4261936, 5327420, 10654840, 21309680]

約数ペア:

[(1, 21309680), (2, 10654840), (4, 5327420), (5, 4261936), (7, 3044240), (8, 2663710), (10, 2130968), (14, 1522120), (16, 1331855), (20, 1065484), (28, 761060), (35, 608848), (40, 532742), (56, 380530), (70, 304424), (80, 266371), (112, 190265), (140, 152212), (280, 76106), (560, 38053)]