21000688247

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{953}}^1\times {\mathrm{26017}}^1$

素因数の和:26999

約数の個数: 24

約数和(自身を含む): 26409727008

約数和(自身を除く): 5409038761

約数列:

[1, 7, 11, 77, 121, 847, 953, 6671, 10483, 26017, 73381, 115313, 182119, 286187, 807191, 2003309, 3148057, 22036399, 24794201, 173559407, 272736211, 1909153477, 3000098321, 21000688247]

約数ペア:

[(1, 21000688247), (7, 3000098321), (11, 1909153477), (77, 272736211), (121, 173559407), (847, 24794201), (953, 22036399), (6671, 3148057), (10483, 2003309), (26017, 807191), (73381, 286187), (115313, 182119)]