221479479

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{6689}}^1$

素因数の和:6991

約数の個数: 24

約数和(自身を含む): 345792720

約数和(自身を除く): 124313241

約数列:

[1, 3, 9, 13, 39, 117, 283, 849, 2547, 3679, 6689, 11037, 20067, 33111, 60201, 86957, 260871, 782613, 1892987, 5678961, 17036883, 24608831, 73826493, 221479479]

約数ペア:

[(1, 221479479), (3, 73826493), (9, 24608831), (13, 17036883), (39, 5678961), (117, 1892987), (283, 782613), (849, 260871), (2547, 86957), (3679, 60201), (6689, 33111), (11037, 20067)]