21102321

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 31321728

約数和(自身を除く): 10219407

約数列:

[1, 3, 17, 37, 51, 53, 111, 159, 211, 629, 633, 901, 1887, 1961, 2703, 3587, 5883, 7807, 10761, 11183, 23421, 33337, 33549, 100011, 132719, 190111, 398157, 413771, 570333, 1241313, 7034107, 21102321]

約数ペア:

[(1, 21102321), (3, 7034107), (17, 1241313), (37, 570333), (51, 413771), (53, 398157), (111, 190111), (159, 132719), (211, 100011), (629, 33549), (633, 33337), (901, 23421), (1887, 11183), (1961, 10761), (2703, 7807), (3587, 5883)]