21063087

素因数分解:

$3^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 31122000

約数和(自身を除く): 10058913

約数列:

[1, 3, 9, 113, 139, 149, 339, 417, 447, 1017, 1251, 1341, 15707, 16837, 20711, 47121, 50511, 62133, 141363, 151533, 186399, 2340343, 7021029, 21063087]

約数ペア:

[(1, 21063087), (3, 7021029), (9, 2340343), (113, 186399), (139, 151533), (149, 141363), (339, 62133), (417, 50511), (447, 47121), (1017, 20711), (1251, 16837), (1341, 15707)]