20021121

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{823}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 32037120

約数和(自身を除く): 12015999

約数列:

[1, 3, 9, 17, 27, 51, 53, 153, 159, 459, 477, 823, 901, 1431, 2469, 2703, 7407, 8109, 13991, 22221, 24327, 41973, 43619, 125919, 130857, 377757, 392571, 741523, 1177713, 2224569, 6673707, 20021121]

約数ペア:

[(1, 20021121), (3, 6673707), (9, 2224569), (17, 1177713), (27, 741523), (51, 392571), (53, 377757), (153, 130857), (159, 125919), (459, 43619), (477, 41973), (823, 24327), (901, 22221), (1431, 13991), (2469, 8109), (2703, 7407)]