20831528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3259}}^1$

素因数の和:3329

約数の個数: 32

約数和(自身を含む): 42249600

約数和(自身を除く): 21418072

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3196, 3259, 6392, 6518, 13036, 26072, 55403, 110806, 153173, 221612, 306346, 443224, 612692, 1225384, 2603941, 5207882, 10415764, 20831528]

約数ペア:

[(1, 20831528), (2, 10415764), (4, 5207882), (8, 2603941), (17, 1225384), (34, 612692), (47, 443224), (68, 306346), (94, 221612), (136, 153173), (188, 110806), (376, 55403), (799, 26072), (1598, 13036), (3196, 6518), (3259, 6392)]