21609693

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2659}}^1$

素因数の和:2718

約数の個数: 32

約数和(自身を含む): 37452800

約数和(自身を除く): 15843107

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2659, 2709, 7977, 8127, 18613, 23931, 55839, 71793, 114337, 167517, 343011, 502551, 800359, 1029033, 2401077, 3087099, 7203231, 21609693]

約数ペア:

[(1, 21609693), (3, 7203231), (7, 3087099), (9, 2401077), (21, 1029033), (27, 800359), (43, 502551), (63, 343011), (129, 167517), (189, 114337), (301, 71793), (387, 55839), (903, 23931), (1161, 18613), (2659, 8127), (2709, 7977)]