21141650

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10313}}^1$

素因数の和:10366

約数の個数: 24

約数和(自身を含む): 40286484

約数和(自身を除く): 19144834

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 10313, 20626, 51565, 103130, 257825, 422833, 515650, 845666, 2114165, 4228330, 10570825, 21141650]

約数ペア:

[(1, 21141650), (2, 10570825), (5, 4228330), (10, 2114165), (25, 845666), (41, 515650), (50, 422833), (82, 257825), (205, 103130), (410, 51565), (1025, 20626), (2050, 10313)]