21998907

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12041}}^1$

素因数の和:12083

約数の個数: 24

約数和(自身を含む): 37571040

約数和(自身を除く): 15572133

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 12041, 36123, 84287, 108369, 252861, 349189, 758583, 1047567, 2444323, 3142701, 7332969, 21998907]

約数ペア:

[(1, 21998907), (3, 7332969), (7, 3142701), (9, 2444323), (21, 1047567), (29, 758583), (63, 349189), (87, 252861), (203, 108369), (261, 84287), (609, 36123), (1827, 12041)]