21180411

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11593}}^1$

素因数の和:11635

約数の個数: 24

約数和(自身を含む): 36173280

約数和(自身を除く): 14992869

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11593, 34779, 81151, 104337, 243453, 336197, 730359, 1008591, 2353379, 3025773, 7060137, 21180411]

約数ペア:

[(1, 21180411), (3, 7060137), (7, 3025773), (9, 2353379), (21, 1008591), (29, 730359), (63, 336197), (87, 243453), (203, 104337), (261, 81151), (609, 34779), (1827, 11593)]