399483279

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{16987}}^1$

素因数の和:17076

約数の個数: 32

約数和(自身を含む): 646903040

約数和(自身を除く): 247419761

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 871, 1809, 2613, 7839, 16987, 23517, 50961, 152883, 220831, 458649, 662493, 1138129, 1987479, 3414387, 5962437, 10243161, 14795677, 30729483, 44387031, 133161093, 399483279]

約数ペア:

[(1, 399483279), (3, 133161093), (9, 44387031), (13, 30729483), (27, 14795677), (39, 10243161), (67, 5962437), (117, 3414387), (201, 1987479), (351, 1138129), (603, 662493), (871, 458649), (1809, 220831), (2613, 152883), (7839, 50961), (16987, 23517)]