21769231

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 26717040

約数和(自身を除く): 4947809

約数列:

[1, 11, 17, 19, 121, 187, 209, 323, 557, 2057, 2299, 3553, 6127, 9469, 10583, 39083, 67397, 104159, 116413, 179911, 1145749, 1280543, 1979021, 21769231]

約数ペア:

[(1, 21769231), (11, 1979021), (17, 1280543), (19, 1145749), (121, 179911), (187, 116413), (209, 104159), (323, 67397), (557, 39083), (2057, 10583), (2299, 9469), (3553, 6127)]