21001849

素因数分解:

${\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:573

約数の個数: 16

約数和(自身を含む): 23892480

約数和(自身を除く): 2890631

約数列:

[1, 11, 31, 121, 341, 509, 1331, 3751, 5599, 15779, 41261, 61589, 173569, 677479, 1909259, 21001849]

約数ペア:

[(1, 21001849), (11, 1909259), (31, 677479), (121, 173569), (341, 61589), (509, 41261), (1331, 15779), (3751, 5599)]