21805101

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2689}}^1$

素因数の和:2765

約数の個数: 24

約数和(自身を含む): 33990840

約数和(自身を除く): 12185739

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2689, 2703, 8067, 8109, 24201, 45713, 137139, 142517, 411417, 427551, 1282653, 2422789, 7268367, 21805101]

約数ペア:

[(1, 21805101), (3, 7268367), (9, 2422789), (17, 1282653), (51, 427551), (53, 411417), (153, 142517), (159, 137139), (477, 45713), (901, 24201), (2689, 8109), (2703, 8067)]