21167656

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19656344

約数列:

[1, 2, 4, 8, 71, 83, 142, 166, 284, 332, 449, 568, 664, 898, 1796, 3592, 5893, 11786, 23572, 31879, 37267, 47144, 63758, 74534, 127516, 149068, 255032, 298136, 2645957, 5291914, 10583828, 21167656]

約数ペア:

[(1, 21167656), (2, 10583828), (4, 5291914), (8, 2645957), (71, 298136), (83, 255032), (142, 149068), (166, 127516), (284, 74534), (332, 63758), (449, 47144), (568, 37267), (664, 31879), (898, 23572), (1796, 11786), (3592, 5893)]